JEE Main April 2020 Exam | Important Dates | Syllabus | Exam Pattern & Registration Process

JEE Main April 2020 Dates of Exam have been changed again by the National Testing Agency (NTA). JEE Main April 2020 Exam will be held from April 5 to April 11, 2020. Earlier, the Joint Entrance Examination Main April Attempt Exam was supposed to be held from 3rd – 9th April, 2020

According to the official notification, the online JEE Main 2020 application form for April Exam will release on February 7, 2020. Eligible candidates will be able to fill and submit their online application form until March 6, 2020. The scanned images can be uploaded and payment of the application fee can be done till March 8, 2020.

After the JEE Main 2020 April Attempt, the ranks of the qualified candidates will be released taking into consideration better of the both attempts of JEE Main 2020 scores of all candidates appeared in January 2020 and April 2020 examinations and will be made available on the official website of JEE Main.

### JEE Main 2020 Dates

Application form availability February 7, 2020
Last date to apply March 6, 2020
Last date to upload images and pay application fee March 8, 2020
Issue of admit card March 16, 2020
Exam date April 5 to April 11, 2020
Release date of answer key and recorded responses Second week of April, 2020
Release of answer key Last week of April, 2020: Paper 1
Second week of May, 2020: Paper 2 & 3
Declaration of result April 30, 2020
Announcement of NTA score Third week of May, 2020

NTA has declared JEE Main 2020 Result for January Session on January 17, 2020. Results for JEE Main April 2020 will be announced on April 30, 2020. Candidates can access their results by entering their date of birth and roll number, along with the declaration of the JEE Main Result, NTA has released the scorecard in online mode.

### JEE Main 2020 Exam Pattern

As per the eligibility criteria for, a few changes in the pattern of the question paper(s) and number of question(s) for B.E./B.Tech has been approved by the JEE Apex Board (JAB) for the conduct of JEE (Main)-2020 Examination.

 Paper Subject with Number of Questions Type of Questions TIMING OF THE EXAMINATION(IST) B.tech Mathematics – 25(20+5) Physics – 25(20+5) Chemistry – 25(20+5) 20 Objective Type – Multiple Choice Questions (MCQs) & 5 Questions with answer as numerical value, with equal weightage to Mathematics, Physics & Chemistry 1st Shift: 09:30 a.m. to 12:30 p.m. 2nd Shift: 02:30 p.m. to 05:30 p.m.

There is no age limit for the candidates to appear in JEE Main 2020 Examination. The candidates who have passed their 12th Examination in 2018, 2019 and appearing in 2020 are eligible to JEE Main Examination 2020.

Those candidates who cleared the class 12 exam in 2017 or before 2017 are not eligible to appear for JEE Main 2020 exam.

#### Educational Qualification

Candidates must have at least 5 subjects in class 12 exam or equivalent exam. Where Math, Physics and Chemistry are the essential subjects.

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Here in this article the students can find the detailed CBSE Class 12 Physics Syllabus 2019-20. Each chapter is described topic wise. Students should follow this and prepare according to it for the exams.

 CHAPTER TOPICS Chapter–1 Electric Charges and Fields Electric Charges Conservation of charge, Coulomb’s law-force between two point charges Forces between multiple charges superposition principle and continuous charge distribution. Electric field Electric field due to a point charge, electric field lines, electric dipole, electric field due to a dipole, torque on a dipole in uniform electric fleld. Electric flux, statement of Gauss’s theorem and its applications to find field due to infinitely long straight wire uniformly charged infinite plane sheet and uniformly charged thin spherical shell (field inside and outside). Chapter–2 Electrostatic Potential and Capacitance Electric potential, potential difference, electric potential due to a point charge, A dipole and system of charges Equipotential surfaces, electrical potential energy of a system of two point charges and of electric dipole in an electrostatic field. Conductors and insulators, free charges and bound charges inside a conductor. Dielectrics and electric polarisation, capacitors and capacitance Combination of capacitors in series and in parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates Energy stored in a capacitor. Chapter–3 Current Electricity Electric current, flow of electric charges in a metallic conductor, drift velocity mobility and their relation with electric current; Ohm’s law electrical resistance V-I characteristics (linear and non-linear), electrical energy and power, electrical resistivity and conductivity Carbon resistors, colour code for carbon resistors Series and parallel combinations of resistors Temperature dependence of resistance. Internal resistance of a cell, potential difference and emf of a cell Combination of cells in series and in parallel Kirchhoff’s laws and simple applications Wheatstone bridge, metre bridge Potentiometer – principle and its applications to measure potential difference and for comparing EMF of two cells; measurement of internal resistance of a cell Chapter–4 Moving Charges and Magnetism Concept of magnetic field, Oersted’s experiment Biot – Savart law and its application to current carrying circular loop Ampere’s law and its applications to infinitely long straight wire Straight and toroidal solenoids (only qualitative treatment) Force on a moving charge in uniform magnetic and electric fields, Cyclotron Force on a current-carrying conductor in a uniform magnetic field Force between two parallel current-carrying conductors-definition of ampere Torque experienced by a current loop in uniform magnetic field Moving coil galvanometer-its current sensitivity and conversion to ammeter and voltmeter Chapter–5 Magnetism and Matter Current loop as a magnetic dipole and its magnetic dipole moment Magnetic dipole moment of a revolving electron Magnetic field intensity due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis Torque on a magnetic dipole (bar magnet) in a uniform magnetic field Bar magnet as an equivalent solenoid, magnetic field lines; earth’s magnetic field and magnetic elements Para-, dia- and ferro – magnetic substances, with examples Electromagnets and factors affecting their strengths, permanent magnets Chapter–6 Electromagnetic Induction Electromagnetic induction Faraday’s laws induced EMF and current Lenz’s Law Eddy currents Self and mutual induction Chapter–7 Alternating Current Alternating currents Peak and RMS value of alternating current/voltage Reactance and impedance LC oscillations (qualitative treatment only) LCR series circuit, resonance; power in AC circuits, power factor, wattless current AC generator and transformer Chapter–8 Electromagnetic Waves Basic idea of displacement current Electromagnetic waves, their characteristics, their Transverse nature (qualitative ideas only) Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays) including elementary facts about their uses Chapter–9 Ray Optics and Optical Instruments Ray Optics: Reflection of light, spherical mirrors, mirror formula, refraction of light, total internal reflection and its applications, optical fibers, refraction at spherical surfaces, lenses, thin lens formula, lensmaker’s formula, magnification, power of a lens, combination of thin lenses in contact, refraction of light through a prism Scattering of light – blue colour of sky and reddish appearance of the sun at sunrise and sunset Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers Chapter-10 Wave Optics Wave front and Huygen’s principle, reflection and refraction of plane wave at a plane surface using wave fronts Proof of laws of reflection and refraction using Huygen’s principle Interference, Young’s double slit experiment and expression for fringe width Coherent sources and sustained interference of light Diffraction due to a single slit, width of central maximum Resolving power of microscope and astronomical telescope Polarisation, Plane polarised light Brewster’s law, uses of plane polarised light and Polaroids Chapter–11 Dual Nature of Radiation and Matter Dual nature of radiation Photoelectric effect Hertz and Lenard’s observations Einstein’s photoelectric equation-particle nature of light Matter waves-wave nature of particles, de-Broglie relation Davisson-Germer experiment (experimental details should be omitted; only conclusion should be explained) Chapter–12 Atoms Alpha-particle scattering experiment Rutherford’s model of atom Bohr model, Energy levels, hydrogen spectrum Chapter–13 Nuclei Composition and size of nucleus Radioactivity, alpha, beta and gamma particles/rays and their properties; radioactive decay law Mass-energy relation, mass defect; binding energy per nucleon and its variation with mass number; nuclear fission, nuclear fusion Chapter–14 Semiconductor Electronics: Materials, Devices and Simple Circuits Energy bands in conductors, semiconductors and insulators (qualitative ideas only) Semiconductor diode – I-V characteristics in forward and reverse bias, diode as a rectifier Special purpose p-n junction diodes: LED, photodiode, solar cell and Zener diode and their characteristics, zener diode as a voltage regulator

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Class 12 PHYSICS Complete Notes

Class 12 CHEMISTRY Complete Notes

Class 12 MATHEMATICS Complete Notes

Class 12 CBSE Syllabus 2019-20 for All Subjects | CBSE Exam Pattern | Chapter-wise Marks Distribution

Every year CBSE conducts board examination for class 10th and 12th. Class 12 CBSE Syllabus 2019-20 is released by Central Board of Secondary Education. But Class 12th Exam Pattern has been changed and the new pattern and marking scheme is introduced for the session 2019-20. So in this article get to know the changes for CBSE CLASS 12TH Exam Pattern with the marking scheme and syllabus.

### CBSE Exam Pattern of Class 12

 Internal Assessment Earlier the internal assessment was not considered for all subjects. But in March 2020 exams, it is mandatory for all the subjects. From now 25% marks are allotted as internal assessments [20 out of 100]. So from March 2020 exams, the final exams will be conducted for 80 marks. However, some fine arts and science stream subjects will follow the same ratio of 70-30. Multiple Choice/Objective Type Questions Recently MCQs or objective type questions are included in all the exams. CBSE will ask 25% of the questions as MCQs. So it is clear that at least 20 marks in each exam are covered by these objective type questions. Rest marks will be covered by the subjective and theory questions. Choice in Questions As per the trend of 2019, CBSE will give option for choice to the students in 33% of the questions.

So, here is the Class 12 CBSE Syllabus 2019-20 for All Subjects with Unit wise weightage:

### CBSE Class 12 Physics Syllabus 2020 with Unit Wise Weightage

 Marking Unit–I Electrostatics 16 Chapter–1: Electric Charges and Fields Chapter–2: Electrostatic Potential and Unit-II Current Electricity Chapter–3: Current Electricity Unit-III Magnetic Effects of Current and Magnetism 17 Chapter–4: Moving Charges and Magnetism Chapter–5: Magnetism and Matter Unit-IV Electromagnetic Induction and Alternating Currents Chapter–6: Electromagnetic Induction Chapter–7: Alternating Current Unit–V Electromagnetic Waves 18 Chapter–8: Electromagnetic Waves Unit–VI Optics Chapter–9: Ray Optics and Optical Instruments Chapter–10: Wave Optics Unit–VII Dual Nature of Radiation and Matter 12 Chapter–11: Dual Nature of Radiation and Matter Unit–VIII Atoms and Nuclei Chapter–12: Atoms Chapter–13: Nuclei Unit–IX Electronic Devices 7 Chapter–14: Semiconductor Electronics: Materials, Devices and Simple Circuits TOTAL MARKS 70

### CBSE Class 12 Chemistry Syllabus 2020 with Unit Wise Weightage

 Unit No. Title Marks Unit I Solutions 23 Unit II Electrochemistry Unit III Chemical Kinetics Unit IV Surface Chemistry Unit V General Principles and Processes of Isolation of Elements 19 Unit VI p -Block Elements Unit VI d -and f -Block Elements Unit VII Coordination Compounds Unit VIII Haloalkanes and Haloarenes 28 Unit IX Alcohols, Phenols and Ethers Unit X Aldehydes, Ketones and Carboxylic Acids Unit XI Organic Compounds containing Nitrogen Unit XII Biomolecules Unit XIII Polymers Unit XIV Chemistry in Everyday Life Total 70

### CBSE Class 12 Mathematics Syllabus 2020 with Unit Wise Weightage

 No. Units Marks I. Relations and Functions 08 II. Algebra 10 III. Calculus 35 IV. Vectors and Three – Dimensional Geometry 14 V. Linear Programming 05 VI. Probability 08 Total 80 Internal Assessment 20

### CBSE Class 12 Biology Syllabus 2020 with Unit Wise Weightage

 Unit Title Marks VI Reproduction 14 VII Genetics and Evolution 18 VIII Biology and Human Welfare 14 IX Biotechnology and its Applications 10 X Ecology and Environment 14 Total 70

### CBSE Class 12 English Syllabus 2020 with Unit Wise Weightage

 Typology Testing Competencies Objective Type Question including MCQs(1 mark each) Short Answer Questio ns (2 marks each) Short Answer Question (4 marks each) Long Answer Question 120–150 words (6 marks each) Very Long Answer Question 150–200 words (HOTS) (10 marks each) Total marks Comprehension Conceptual understanding, decoding, Analyzing, inferring, interpreting, appreciating, literary, conventions and vocabulary, summarizing and using appropriate format/s MCQ = 5 Objective Type Questions = 7 – 2 – – 20 Writing Skills Reasoning, appropriacy of style and tone, using appropriate format and fluency, inference, analysis, evaluation and creativity – – 1 1 2 30 Literature Textbooks  and Supplementary Reading Text Recalling, reasoning, appreciating literary convention, inference, analysis, creativity with fluency 8 Objective Type Questions (4 from1 prose and 4 from 1 poetry extract) 5 – 2 – 30 TOTAL 1×20=20 2×5=10 4×3=12 6×3=18 10×2=20 80 Assessment                      of Listening                      and Speaking Skills – – – – – 20 GRAND TOTAL – – – – – 100

### CBSE Class 12 Physical Education Syllabus 2020

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Class 12 PHYSICS Complete Notes

Class 12 CHEMISTRY Complete Notes

Class 12 MATHEMATICS Complete Notes

CBSE Syllabus for Class 12 Mathematics

## Here is the detailed syllabus of Class 12 Mathematics for CBSE Boards:

Get the detailed CBSE Syllabus for Class 12 Mathematics. This syllabus contains Unit and Chapterwise distribution for Mathematics.

You can also get Syllabus of Physics and Chemistry.

### Unit-I : Relations and Functions

#### 1. Relations and Functions

Types of relations: reflexive, symmetric, transitive and equivalence relations. One to one and onto functions, composite functions, inverse of a function. Binary operations.

#### 2. Inverse Trigonometric Functions

Definition, range, domain, principal value branch. Graphs of inverse trigonometric functions. Elementary properties of inverse trigonometric functions.

### Unit-II : Algebra

#### 1.Matrices

Concept, notation, order, equality, types of matrices, zero and identity matrix, transpose of a matrix, symmetric and skew symmetric matrices. Operation on matrices: Addition and multiplication and multiplication with a scalar. Simple properties of addition, multiplication and scalar multiplication. Non- commutativity of multiplication of matrices and existence of non-zero matrices whose product is the zero matrix (restrict to square matrices of order 2).Concept of elementary row and column operations. Invertible matrices and proof of the uniqueness of inverse, if it exists; (Here all matrices will have real entries).

#### 2. Determinants

Determinant of a square matrix (up to 3 x 3 matrices), properties of determinants, minors, co-factors and applications of determinants in finding the area of a triangle. Adjoint and inverse of a square matrix. Consistency, inconsistency and number of solutions of system of linear equations by examples, solving system of linear equations in two or three variables (having unique solution) using inverse of a matrix.

### Unit-III : Calculus

#### 1. Continuity and Differentiability

Continuity and differentiability, derivative of composite functions, chain rule, derivatives of inverse trigonometric functions, derivative of implicit functions. Concept of exponential and logarithmic functions.

Derivatives of logarithmic and exponential functions. Logarithmic differentiation, derivative of functions expressed in parametric forms. Second order derivatives. Rolle’s and Lagrange’s Mean Value Theorems (without proof) and their geometric interpretation.

#### 2. Applications of Derivatives

Applications of derivatives: rate of change of bodies, increasing/decreasing functions, tangents and normals, use of derivatives in approximation, maxima and minima (first derivative test motivated geometrically and second derivative test given as a provable tool). Simple problems (that illustrate basic principles and understanding of the subject as well as real-life situations).

#### 3. Integrals

Integration as inverse process of differentiation. Integration of a variety of functions by substitution, by partial fractions and by parts, Evaluation of simple integrals of the following types and problems based on them.

$$\int {{{dx} \over {{x^2} \pm {a^2}}}} ,\,\,\int {{{dx} \over {\sqrt {{x^2} \pm {a^2}} }},\,\int {{{dx} \over {{a^2} – {x^2}}}} } ,$$$$\int {{{dx} \over {a{x^2} + bx + c}}} ,\,\,\int {{{dx} \over {\sqrt {a{x^2} + bx + c} }}}$$

$$\int {{{px + q} \over {a{x^2} + bx + c}}dx,\,\,} \int {{{px + q} \over {\sqrt {a{x^2} + bx + c} }}dx,\,\,\int {\sqrt {{a^2} \pm {x^2}} \,dx,\,\,} \,\int {\sqrt {{x^2} – {a^2}} \,dx} }$$

$$\int {\sqrt {a{x^2} + bx + c} } \,\,dx,\,\int {(px + q)\,\sqrt {a{x^2} + bx + c} \,\,} dx$$

Definite integrals as a limit of a sum, Fundamental Theorem of Calculus (without proof). Basic properties of definite integrals and evaluation of definite integrals.

#### 4. Applications of the Integrals

Applications in finding the area under simple curves, especially lines, circles/ parabolas/ellipses (in standard form only), Area between any of the two above said curves (the region should be clearly identifiable).

#### 5. Differential Equations

Definition, order and degree, general and particular solutions of a differential equation. formation of differential equation whose general solution is given. Solution of differential equations by method of separation of variables, solutions of homogeneous differential equations of first order and first degree. Solutions of linear differential equation of the type:

$${{dy} \over {dx}} + py = q$$ , where p and q are functions of x or constants.

$${{dx} \over {dy}} + px = q$$, where p and q are functions of y or constants

### Unit-IV : Vectors and Three-Dimensional Geometry

#### 1. Vectors

Vectors and scalars, magnitude and direction of a vector. Direction cosines and direction ratios of a vector. Types of vectors (equal, unit, zero, parallel and collinear vectors), position vector of a point, negative of a vector, components of a vector, addition of vectors, multiplication of a vector by a scalar, position vector of a point dividing a line segment in a given ratio. Definition, Geometrical Interpretation, properties and application of scalar (dot) product of vectors, vector (cross) product of vectors, scalar triple product of vectors.

#### 2. Three – dimensional Geometry

Direction cosines and direction ratios of a line joining two points. Cartesian equation and vector equation of a line, coplanar and skew lines, shortest distance between two lines. Cartesian and vector equation of a plane. Angle between (i) two lines, (ii) two planes, (iii) a line and a plane. Distance of a point from a plane.

### Unit-V: Linear Programming

#### 1. Linear Programming

Introduction, related terminology such as constraints, objective function, optimization, different types of linear programming (L.P.) problems, mathematical formulation of L.P. problems, graphical method of solution for problems in two variables, feasible and infeasible regions (bounded or unbounded), feasible and infeasible solutions, optimal feasible solutions (up to three non-trivial constraints).

### Unit-VI : Probability

#### 1. Probability

Conditional probability, multiplication theorem on probability, independent events, total probability, Bayes’ theorem, Random variable and its probability distribution, mean and variance of random variable. Repeated independent (Bernoulli) trials and Binomial distribution.

CBSE Syllabus for Class 12 Chemistry

## Here is the detailed syllabus of Class 12 Chemistry for CBSE Boards:

Get the detailed CBSE Syllabus for Class 12 Chemistry. This syllabus contains Unit and Chapterwise distribution for Chemistry.

You can also get Syllabus of Physics and Math.

### Unit I: Solid State

Classification of solids based on different binding forces: molecular, ionic, covalent and metallic solids, amorphous and crystalline solids (elementary idea). Unit cell in two dimensional and three dimensional lattices, calculation of density of unit cell, packing in solids, packing efficiency, voids, number of atoms per unit cell in a cubic unit cell, point defects, electrical and magnetic properties. Band theory of metals, conductors, semiconductors and insulators and n and p type semiconductors.

### Unit II: Solutions

Types of solutions, expression of concentration of solutions of solids in liquids, solubility of gases in liquids, solid solutions, colligative properties – relative lowering of vapour pressure, Raoult’s law, elevation of boiling point, depression of freezing point, osmotic pressure, determination of molecular masses using colligative properties, abnormal molecular mass, Van’t Hoff factor.

### Unit III: Electrochemistry

Redox reactions, conductance in electrolytic solutions, specific and molar conductivity, variations of conductivity with concentration, Kohlrausch’s Law, electrolysis and law of electrolysis (elementary idea), dry cell-electrolytic cells and Galvanic cells, lead accumulator, EMF of a cell, standard electrode potential, Nernst equation and its application to chemical cells, Relation between Gibbs energy change and EMF of a cell, fuel cells, corrosion.

### Unit IV: Chemical Kinetics

Rate of a reaction (Average and instantaneous), factors affecting rate of reaction: concentration, temperature, catalyst; order and molecularity of a reaction, rate law and specific rate constant, integrated rate equations and half-life (only for zero and first order reactions), concept of collision theory (elementary idea, no mathematical treatment). Activation energy, Arrhenious equation.

### Unit V: Surface Chemistry

Adsorption – physisorption and chemisorption, factors affecting adsorption of gases on solids, catalysis, homogenous and heterogenous activity and selectivity; enzyme catalysis colloidal state distinction between true solutions, colloids and suspension; lyophilic, lyophobic multi-molecular and macromolecular colloids; properties of colloids; Tyndall effect, Brownian movement, electrophoresis, coagulation, emulsion – types of emulsions.

### Unit VI: General Principles and Processes of Isolation of Elements

Principles and methods of extraction – concentration, oxidation, reduction – electrolytic method and refining; occurrence and principles of extraction of aluminium, copper, zinc and iron

### Unit VII: Some p -Block Elements

#### Group -15 Elements:

General introduction, electronic configuration, occurrence, oxidation states, trends in physical and chemical properties; Nitrogen preparation properties and uses; compounds of Nitrogen, preparation and properties of Ammonia and Nitric Acid, Oxides of Nitrogen(Structure only) ; Phosphorus – allotropic forms, compounds of Phosphorus: Preparation and Properties of Phosphine, Halides and Oxoacids (elementary idea only).

#### Group 16 Elements:

General introduction, electronic configuration, oxidation states, occurrence, trends in physical and chemical properties, dioxygen: Preparation, Properties and uses, classification of Oxides, Ozone, Sulphur -allotropic forms; compounds of Sulphur: Preparation Properties and uses of Sulphur-dioxide, Sulphuric Acid: industrial process of manufacture, properties and uses; Oxoacids of Sulphur (Structures only).

#### Group 17 Elements:

General introduction, electronic configuration, oxidation states, occurrence, trends in physical and chemical properties; compounds of halogens, Preparation, properties and uses of Chlorine and Hydrochloric acid, interhalogen compounds, Oxoacids of halogens (structures only).

#### Group 18 Elements:

General introduction, electronic configuration, occurrence, trends in physical and chemical properties, uses.

### Unit VIII: “d” and “f” Block Elements

General introduction, electronic configuration, occurrence and characteristics of transition metals, general trends in properties of the first row transition metals – metallic character, ionization enthalpy, oxidation states, ionic radii, colour, catalytic property, magnetic properties, interstitial compounds, alloy formation, preparation and properties of K2Cr2O7 and KMnO4.

Lanthanoids – Electronic configuration, oxidation states, chemical reactivity and lanthanoid contraction and its consequences.

Actinoids – Electronic configuration, oxidation states and comparison with lanthanoids.

### Unit IX: Coordination Compounds

Coordination compounds – Introduction, ligands, coordination number, colour, magnetic properties and shapes, IUPAC nomenclature of mononuclear coordination compounds. Bonding, Werner’s theory, VBT, and CFT; structure and stereoisomerism, importance of coordination compounds (in qualitative inclusion, extraction of metals and biological system).

### Unit X: Haloalkanes and Haloarenes

Haloalkanes: Nomenclature, nature of C-X bond, physical and chemical properties, mechanism of substitution reactions, optical rotation.

Haloarenes: Nature of C-X bond, substitution reactions (Directive influence of halogen in monosubstituted compounds only).

Uses and environmental effects of – dichloromethane, trichloromethane, tetrachloromethane, iodoform, freons, DDT.

### Unit XI: Alcohols, Phenols and Ethers

Alcohols: Nomenclature, methods of preparation, physical and chemical properties (of primary alcohols only), identification of primary, secondary and tertiary alcohols, mechanism of dehydration, uses with special reference to methanol and ethanol.

Phenols: Nomenclature, methods of preparation, physical and chemical properties, acidic nature of phenol, electrophillic substitution reactions, uses of phenols.

Ethers: Nomenclature, methods of preparation, physical and chemical properties, uses.

### Unit XII: Aldehydes, Ketones and Carboxylic Acids

Aldehydes and Ketones: Nomenclature, nature of carbonyl group, methods of preparation, physical and chemical properties, mechanism of nucleophilic addition, reactivity of alpha hydrogen in aldehydes, uses.

Carboxylic Acids: Nomenclature, acidic nature, methods of preparation, physical and chemical properties; uses.

### Unit XIII: Organic compounds containing Nitrogen

Amines: Nomenclature, classification, structure, methods of preparation, physical and chemical properties, uses, identification of primary, secondary and tertiary amines.

Cyanides and Isocyanides – will be mentioned at relevant places in text.

Diazonium salts: Preparation, chemical reactions and importance in synthetic organic chemistry.

### Unit XIV: Biomolecules

Carbohydrates – Classification (aldoses and ketoses), monosaccahrides (glucose and fructose), D-L configuration oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen); Importance of carbohydrates.

Proteins -Elementary idea of – amino acids, peptide bond, polypeptides, proteins, structure of proteins – primary, secondary, tertiary structure and quaternary structures (qualitative idea only), denaturation of proteins; enzymes. Hormones – Elementary idea excluding structure.

Vitamins – Classification and functions.

Nucleic Acids: DNA and RNA.

### Unit XV: Polymers

Classification – natural and synthetic, methods of polymerization (addition and condensation), copolymerization, some important polymers: natural and synthetic like polythene, nylon polyesters, bakelite, rubber. Biodegradable and non-biodegradable polymers.

### Unit XVI: Chemistry in Everyday life

Chemicals in medicines – analgesics, tranquilizers antiseptics, disinfectants, antimicrobials, antifertility drugs, antibiotics, antacids, antihistamines.

Chemicals in food – preservatives, artificial sweetening agents, elementary idea of antioxidants. Cleansing agents- soaps and detergents, cleansing action.

CBSE Syllabus for Class 12 Physics

## Here is the detailed syllabus of Class 12 Physics for CBSE Boards:

Get the detailed CBSE Syllabus for Class 12 Physics. This syllabus contains Unit and Chapterwise distribution for Physics.

You can also get Syllabus of Chemistry and Math.

### Unit I : Electrostatics

#### Chapter–1: Electric Charges and Fields

Electric Charges; Conservation of charge, Coulomb’s law-force between two point charges, forces between multiple charges; superposition principle and continuous charge distribution.

Electric field, electric field due to a point charge, electric field lines, electric dipole, electric field due to a dipole, torque on a dipole in uniform electric field.

Electric flux, statement of Gauss’s theorem and its applications to find field due to infinitely long straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell (field inside and outside).

#### Chapter–2: Electrostatic Potential and Capacitance

Electric potential, potential difference, electric potential due to a point charge, a dipole and system of charges; equipotential surfaces, electrical potential energy of a system of two point charges and of electric dipole in an electrostatic field.

Conductors and insulators, free charges and bound charges inside a conductor. Dielectrics and electric polarisation, capacitors and capacitance, combination of capacitors in series and in parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, energy stored in a capacitor.

### Unit II : Current Electricity

#### Chapter–3: Current Electricity

Electric current, flow of electric charges in a metallic conductor, drift velocity, mobility and their relation with electric current; Ohm’s law, electrical resistance, V-I characteristics (linear and non-linear), electrical energy and power, electrical resistivity and conductivity, Carbon resistors, colour code for carbon resistors; series and parallel combinations of resistors; temperature dependence of resistance.

Internal resistance of a cell, potential difference and emf of a cell, combination of cells in series and in parallel, Kirchhoff’s laws and simple applications, Wheatstone bridge, metre bridge.

Potentiometer – principle and its applications to measure potential difference and for comparing EMF of two cells; measurement of internal resistance of a cell.

### Unit III : Magnetic Effects of Current and Magnetism

#### Chapter–4: Moving Charges and Magnetism

Concept of magnetic field, Oersted’s experiment.

Biot – Savart law and its application to current carrying circular loop.

Ampere’s law and its applications to infinitely long straight wire. Straight and toroidal solenoids (only qualitative treatment), force on a moving charge in uniform magnetic and electric fields, Cyclotron.

Force on a current-carrying conductor in a uniform magnetic field, force between two parallel current-carrying conductors-definition of ampere, torque experienced by a current loop in uniform magnetic field; moving coil galvanometer-its current sensitivity and conversion to ammeter and voltmeter. 12

#### Chapter–5 : Magnetism and Matter

Current loop as a magnetic dipole and its magnetic dipole moment, magnetic dipole moment of a revolving electron, magnetic field intensity due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, torque on a magnetic dipole (bar magnet) in a uniform magnetic field; bar magnet as an equivalent solenoid, magnetic field lines; earth’s magnetic field and magnetic elements.

Para-, dia- and ferro – magnetic substances, with examples. Electromagnets and factors affecting their strengths, permanent magnets.

### Unit IV : Electromagnetic Induction and Alternating Currents

#### Chapter–6: Electromagnetic Induction

Electromagnetic induction; Faraday’s laws, induced EMF and current; Lenz’s Law, Eddy currents. Self and mutual induction.

#### Chapter–7: Alternating Current

Alternating currents, peak and RMS value of alternating current/voltage; reactance and impedance; LC oscillations (qualitative treatment only), LCR series circuit, resonance; power in AC circuits, power factor, wattless current.

AC generator and transformer.

### Unit V : Electromagnetic waves

#### Chapter–8: Electromagnetic Waves

Basic idea of displacement current, Electromagnetic waves, their characteristics, their Transverse nature (qualitative ideas only).

Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays) including elementary facts about their uses.

### Unit VI : Optics

#### Chapter–9: Ray Optics and Optical Instruments

Ray Optics: Reflection of light, spherical mirrors, mirror formula, refraction of light, total internal reflection and its applications, optical fibres, refraction at spherical surfaces, lenses, thin lens formula, lensmaker’s formula, magnification, power of a lens, combination of thin lenses in contact, refraction and dispersion of light through a prism.

Scattering of light – blue colour of sky and reddish apprearance of the sun at sunrise and sunset.

Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers.

#### Chapter–10: Wave Optics

Wave optics: Wave front and Huygen’s principle, reflection and refraction of plane wave at a plane surface using wave fronts. Proof of laws of reflection and refraction using Huygen’s principle. Interference, Young’s double slit experiment and expression for fringe width, coherent sources and sustained interference of light, diffraction due to a single slit, width of central maximum, resolving power of microscope and astronomical telescope, polarisation, plane polarised light, Brewster’s law, uses of plane polarised light and Polaroids.

### Unit VII : Dual Nature of Radiation and Matter

#### Chapter–11: Dual Nature of Radiation and Matter

Dual nature of radiation, Photoelectric effect, Hertz and Lenard’s observations; Einstein’s photoelectric equation-particle nature of light.

Matter waves-wave nature of particles, de-Broglie relation, Davisson-Germer experiment (experimental details should be omitted; only conclusion should be explained).

### Unit VIII : Atoms and Nuclei

#### Chapter–12: Atoms

Alpha-particle scattering experiment; Rutherford’s model of atom; Bohr model, energy levels, hydrogen spectrum.

#### Chapter–13: Nuclei

Composition and size of nucleus, Radioactivity, alpha, beta and gamma particles/rays and their properties; radioactive decay law.

Mass-energy relation, mass defect; binding energy per nucleon and its variation with mass number; nuclear fission, nuclear fusion.

### Unit IX : Electronic Devices

#### Chapter–14 : Semiconductor Electronics: Materials, Devices and Simple Circuits

Energy bands in conductors, semiconductors and insulators (qualitative ideas only)

Semiconductor diode – I-V characteristics in forward and reverse bias, diode as a rectifier;

Special purpose p-n junction diodes: LED, photodiode, solar cell and Zener diode and their characteristics, zener diode as a voltage regulator.

Junction transistor, transistor action, characteristics of a transistor and transistor as an amplifier (common emitter configuration), basic idea of analog and digital signals, Logic gates (OR, AND, NOT, NAND and NOR).

### Unit X : Communication Systems

#### Chapter–15: Communication Systems

Elements of a communication system (block diagram only); bandwidth of signals (speech, TV and digital data); bandwidth of transmission medium. Propagation of electromagnetic waves in the atmosphere, sky and space wave propagation, satellite communication. Need for modulation, amplitude modulation.