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Physics · SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

हिन्दी

An ideal rigid body is best defined as a body in which:

  1. A
    The shape changes continuously when external forces act on it.
  2. B
    The distances between all pairs of particles do not change under any circumstances.
  3. C
    The particles are always moving relative to one another with constant speed.
  4. D
    The centre of mass always remains strictly at rest.
View Answer & Solution

Correct answer · Option B

The distances between all pairs of particles do not change under any circumstances.

Explanation

By definition, a rigid body is ideally a body with a perfectly definite and unchanging shape, such that the distances between all pairs of particles of the body do not change.

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