NEET - Vector Previous Year Questions with Solutions
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Here you will get Complete Vector NEET Previous Year Questions with complete and detailed solutions.
Get complete NEET previous year questions for Physics, Chemistry and Biology.
You will find all the solutions at the end of this page:
Score 700+ in NEET 2025 – Course for Droppers at ₹2200, Limited Time Offer!
Score 700+ in NEET 2025 – Course for Droppers at ₹2200, Limited Time Offer!
Score 700+ in NEET 2025 – Course for Droppers at ₹2200, Limited Time Offer
Common Mistakes Students Make in Vector Questions
Mistakes That Cost Marks in NEET
| Mistake | Why It Happens | How to Avoid It |
|---|---|---|
| Using the wrong formula for the resultant | Confusing sum and difference formulas | Memorise both; note that subtraction uses $-2AB\cos\theta$ |
| Forgetting to resolve vectors into components before adding | Skipping steps to save time | Always draw a rough diagram |
| Confusing dot product with cross product | Similar-looking notation | Dot = scalar = $\cos\theta$; Cross = vector = $\sin\theta$ |
| Calculating the angle from horizontal instead of between vectors | Misreading the question | Underline "angle between" in the question |
| Treating magnitude of $A - B$ as $A - B$ directly | Algebraic thinking applied to vectors | Magnitudes do not subtract like scalars |
Past eSaral batches have shown that students who drill these five mistake patterns on PYQs before NEET improve their Physics score by 8–12 marks on average — purely by eliminating errors rather than learning new material.
Most Repeated Vector Sub-topics in NEET (By Frequency)
| Sub-topic | Approximate Frequency |
|---|---|
| Resultant of two vectors (Parallelogram Law) | Very High |
| Angle between vectors when resultant equals a given value | High |
| Unit vector calculation | High |
| Scalar and vector product applications | Medium |
| Resolution of vectors into components | Medium |
| Null vector and co-planar vectors | Low |
Key Vector Concepts You Must Know Before Solving PYQs
Vector Addition and Subtraction
The Triangle Law and Parallelogram Law of vector addition are tested almost every other year. Know these formulas thoroughly:
- Resultant magnitude (Parallelogram Law):
$R = \sqrt{A^2 + B^2 + 2AB\cos\theta}$ - Direction of resultant:
$\tan \alpha = \frac{B\sin\theta}{A + B\cos\theta}$ - Vector subtraction:
$|A - B| = \sqrt{A^2 + B^2 - 2AB\cos\theta}$
Special Cases Tested in NEET
- $\theta = 0^\circ \rightarrow R = A + B$ (maximum resultant)
- $\theta = 180^\circ \rightarrow R = |A - B|$ (minimum resultant)
- $\theta = 90^\circ \rightarrow R = \sqrt{A^2 + B^2}$
- When $|A + B| = |A - B| \rightarrow \theta = 90^\circ$
Frequently Asked Questions
Find answers to common questions.
Is the Vector chapter difficult for NEET?
Vector questions in NEET are generally of easy to medium difficulty. Most questions are direct formula applications and take under 60 seconds if you know the standard results. The chapter becomes difficult only when students have not practised the special cases. Regular PYQ practice makes this one of the most reliable scoring chapters in NEET Physics.
What are the most important vector topics for NEET?
The highest-priority topics for NEET are: Parallelogram Law of vector addition (resultant magnitude and direction), conditions for maximum and minimum resultant, unit vectors, and the distinction between dot product and cross product. Questions on the angle between vectors when their sum equals their difference (answer: 90°) are asked repeatedly and should be a memorised result.
How many questions come from Vectors in NEET every year?
NTA typically sets 1 to 2 questions from Vectors in NEET, contributing 4 to 8 marks. While the count varies by year, the chapter has appeared in nearly every NEET and AIPMT paper since 2000. Because vector concepts also appear indirectly in topics like Projectile Motion and Rotational Motion, mastering this chapter has a multiplier effect on your overall Physics score.
What is the formula for the resultant of two vectors at angle θ?
The magnitude of the resultant R of two vectors A and B at angle θ is: R = √(A² + B² + 2AB cosθ). The direction α with respect to vector A is: tan α = (B sinθ)/(A + B cosθ). These two formulas cover almost every direct resultant question in NEET.
How do I find the unit vector of a given vector?
A unit vector in the direction of vector A is found by dividing the vector by its own magnitude: Â = A / |A|. If A = aî + bĵ + ck̂, then |A| = √(a² + b² + c²). The unit vector has magnitude 1 and only carries the directional information of the original vector. NEET asks this in both direct and application form.
What is the formula for the resultant of two vectors at angle θ?
The magnitude of the resultant R of two vectors A and B at angle θ is: R = √(A² + B² + 2AB cosθ). The direction α with respect to vector A is: tan α = (B sinθ)/(A + B cosθ). These two formulas cover almost every direct resultant question in NEET.