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Important Questions For Class 11 Physics Chapter 14 Waves - PDF Download

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The Important Questions for Class 11 Physics Chapter 14 wave are given below in pdf form so that any student can download them. Physics is one of the most crucial and conceptual subjects among all three subjects in Class 11, as the concepts of this standard are included in the board examination. Class 11 Physics Chapter 14 wave is one of the scoring chapters of the Physics subject. Candidates should study hard so that you can solve any type of question asked from this chapter in the exam. It will also help you to score better in your papers.

Students can download the pdf free of cost of Important Questions with solutions for CBSE Class 11 Physics Chapter 14 - wave prepared by expert Physics teachers from the latest edition of CBSE(NCERT) books. 

Important Topics & Sub-topics of Waves Class 11 Physics 



Mechanical Waves

  • Definition of waves

  • Types of waves (longitudinal and transverse)

  • Wave parameters (amplitude, frequency, wavelength, speed)

Wave Motion

  • Wave equation

  • Characteristics of waves (reflection, refraction, interference, diffraction)

  • Superposition of waves

Sound Waves

  • Nature of sound as a longitudinal wave

  • Speed of sound

  • Production and propagation of sound

  • Doppler effect

Electromagnetic Waves

  • Introduction to electromagnetic spectrum

  • Properties of electromagnetic waves

  • Electromagnetic wave equations

Wave Optics

  • Huygens' principle

  • Reflection and refraction of waves

  • Dispersion of light

  • Interference and diffraction of light waves


  • Polarization of transverse waves

  • Polarization by reflection and by scattering

  • Uses of polarization in various technologies

These are the important topics and sub-topics related to waves covered in Class 11 Physics. Understanding these concepts will provide a strong foundation for further studies in physics, particularly in the context of wave phenomena.

Class 11 Physics Chapter 14 Waves Weightage

The weightage of topics within Chapter 14 "Waves" in Class 11 Physics may vary from one educational board or school to another, but generally, the weightage of topics is distributed relatively evenly. However, to provide you with a rough idea, here's a general breakdown of the weightage of some key topics within the chapter

Concepts related to the nature of mechanical waves, such as longitudinal and transverse waves, wave parameters (amplitude, frequency, wavelength, speed), and wave equations, often have a significant weightage.

Topics like the nature of sound as a longitudinal wave, the speed of sound, and the Doppler effect are essential and are likely to be weighted appropriately.

Topics related to wave optics, including Huygens' principle, reflection and refraction of waves, dispersion of light, and interference and diffraction of light waves, might be moderately weighted

Keep in mind that the actual weightage may differ depending on one board to another board examination and syllabus. To prepare effectively, it's essential to cover all the topics in the chapter, but you might want to allocate more time to topics that are commonly weighted higher in your exams. Additionally, solving practice questions related to each of these topics will help you prepare comprehensively for your physics exams.

Tips to Solve Class 11 Physics Chapter 14 Waves 

Certainly, here are some tips to help you solve Class 11 Physics Chapter 14 on Waves:

  •  Begin by understanding the fundamental concepts of waves, including types (mechanical and electromagnetic), wave parameters (amplitude, frequency, wavelength, speed), and wave propagation.

  •  Familiarize yourself with the wave equation, which relates the speed, frequency, and wavelength of a wave (v = fλ).

  •  Drawing diagrams of different types of waves, such as transverse and longitudinal waves, helps in visualizing the concepts.

  • Understand how waves superpose, both constructively and destructively. Learn how to find resultant amplitudes in superposition.

  •  Explore interference phenomena, including the double-slit experiment. Understand how the phase difference affects interference patterns.

  • Study how waves reflect and refract at boundaries. Be clear about the difference between fixed and free ends in reflection.

  • Understand standing waves and nodes/antinodes. Practice solving problems related to standing waves on strings and in pipes.

  • Practice numerical problems to apply wave principles. Work on problems involving the Doppler effect, wave speed, frequency, and wavelength.

  • Familiarize yourself with key formulas and equations, such as those for wave speed (v = fλ), Doppler effect, and Snell's Law for refraction.

  • If possible, conduct experiments or observations related to wave phenomena, as practical experience can reinforce theoretical knowledge.

  • Waves build upon earlier physics concepts. Ensure you have a good understanding of previous chapters, especially those related to mechanics and energy.

  • Allocate sufficient time to this chapter, as it involves a range of concepts. Break down your study into smaller, manageable sessions.

Remember, understanding waves is important, not just for Class 11 but also because wave phenomena are prevalent in various fields of science and engineering. So, take your time to grasp the concepts thoroughly.

Benefits of Solving Class 11 Physics Chapter 14 Important Questions with Answers

Solving Class 11 Physics Chapter 14 important questions with answers offers several benefits:

  • Class 11 physics chapter 14 important questions are typically selected to cover key concepts in the chapter, ensuring that you have a comprehensive understanding.

  • These important questions of physics class 11 chapter 14 are often aligned with the exam pattern, so practicing them helps you prepare effectively for exams.

  • It helps you learn how to manage your time efficiently during exams, which is crucial for completing the paper within the stipulated time.

  • You'll develop problem-solving skills by tackling a variety of questions, which can be applied to a wide range of physics problems.

  • Solving these questions reinforces your understanding of the chapter's important principles and theories.

  • It allows you to assess your knowledge and identify areas that require more attention or revision.

  • Success in solving important questions boosts your confidence for the actual exams.

  • Regularly practicing important questions can help you retain information and concepts better.

  • Often, important questions have a higher probability of appearing in exams, so practicing them gives you an advantage.

Frequently Asked Questions

Question 1:What is Superposition in Waves?

Answer : Superposition is when two or more waves combine. This can result in constructive (amplitude increases) or destructive (amplitude decreases) interference.

Question 2:What is the Doppler Effect in Waves?

Answer 2: The Doppler effect is a change in the observed frequency of a wave when there is relative motion between the source of the wave and the observer