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Model Paper 8 — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETModel Paper 84 Marks
MCQ
Choose the wrong statement.
  • A
    Zero velocity of a particle does not necessarily mean that its acceleration is zero.
  • B
    If speed of a particle is constant, its acceleration must be zero.
  • C
    If speed of a particle is increases, its acceleration must be zero.
  • D
    Zero acceleration of a particle does not necessarily mean that its velocity is zero.
✓

Answer

B. If speed of a particle is constant, its acceleration must be zero.
Explanation:
If speed, that is magnitude of velocity is constant whereas the direction of velocity changes; we cannot say that velocity is constant. Therefore, the particle has non-zero acceleration.

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