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NEET2015PhysicsLaws of MotionActual

Assertion : Use of ball bearing between two moving parts of a machine is a common practice. Reason : Ball bearing reduces rolling friction and provides good stability.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIfboth assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

A. If both assertion and reason are true and reason is the correct explanation of assertion.

Step-by-step solution

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