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AIIMS2006PhysicsMotion in One Dimension

Assertion : A man in a closed cabin which is falling freely does not experience gravity. Reason : Inertial and gravitational mass have equivalence.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of the assertion
  2. BIf both assertion and reason are true but reason is not the correct explanation of the assertion
  3. CIf assertion is true, but reason is false
  4. DBoth assertion and reason are false statements.

Correct answer

B. If both assertion and reason are true but reason is not the correct explanation of the assertion

Step-by-step solution

If a man inside a lift which is falling freely i.e. with acceleration g , the relative acceleration of the man with respect to the lift = acceleration of man with respect to earth (g) - acceleration of lift with respect to earth, g=g-g=0 . Assertion is correct. The statement given by the Reason is correct but not what is given is the Reason for the assertion.

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