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NEET & JEE · Physics · Class 11

Motion in a Plane — NEET & JEE Physics MCQs

30 questions written by hand against the NCERT chapter. Every wrong option is explained, not just the right one.

30questions
10/14/6easy / medium / hard
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Sample questions from this chapter

Which quantity is necessarily a vector?
  1. Displacement ✓
  2. Distance
  3. Speed
  4. Temperature
Answer: A. Displacement has magnitude and direction and obeys vector addition. Distance, speed and temperature are scalars.
Why not B: Distance has magnitude only and accumulates path length.
Why not C: Speed is the scalar magnitude of velocity.
Why not D: Temperature carries magnitude and unit but no spatial direction.
A 20 m s⁻¹ vector is directed 30° above +x. What is its y-component?
  1. 17.3 m s⁻¹
  2. 20.0 m s⁻¹
  3. 10.0 m s⁻¹ ✓
  4. 5.0 m s⁻¹
Answer: C. Ay = A sin30° = 20 × 0.5 = 10.0 m s⁻¹.
Why not A: This uses cosine and obtains the x-component.
Why not B: This reports the full magnitude without resolving it.
Why not D: This multiplies by sin²30° instead of sin30°.
A boat moves north at 25 km h⁻¹ while current is 10 km h⁻¹ at 60° east of south. What is the resultant speed?
  1. 21.8 km h⁻¹ ✓
  2. 15.0 km h⁻¹
  3. 31.2 km h⁻¹
  4. 35.0 km h⁻¹
Answer: A. The angle between velocities is 120°, so R = √(25²+10²+2·25·10 cos120°) ≈ 21.8 km h⁻¹.
Why not B: This subtracts full speeds as if current were due south.
Why not C: This treats the included angle as 60° instead of 120°.
Why not D: This adds speeds as if both pointed north.

These are 3 of the 30 questions in the test. Take the full chapter test →

Read the chapter first

Every NCERT question in this chapter is solved, free: NCERT solutions — Motion in a Plane →

Other NEET Physics chapters

Units and MeasurementMotion in a Straight LineLaws of MotionWork Energy and PowerSystems of Particles and Rotational MotionGravitation

All 28 chapters →

Questions

How many NEET and JEE questions are there on Motion in a Plane?

This chapter test has 30 questions — 10 easy, 14 medium and 6 hard — all written against the NCERT Class 11 chapter.

Is this NEET and JEE Physics chapter test free?

Yes. Every chapter test is free with no login, and you get your all-India rank on every one. Nothing on the site is on sale right now.

Do the questions explain the wrong options?

Yes — every distractor carries its own explanation naming the specific misconception that makes a student pick it. That is the part most question banks skip, and it is the part that changes your next attempt.