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Assertion (A): A machine having mechanical advantage greater than 1, gives gain in speed. Reason (R): A machine having mechanical advantage less than 1, acts as a force multiplier.

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Question

Assertion (A): A machine having mechanical advantage greater than 1, gives gain in speed.

Reason (R): A machine having mechanical advantage less than 1, acts as a force multiplier.

Options

  • Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion.

  • Both Assertion (A) and Reason (R) are true but Reason (R) is not the correction explanation of Assertion.

  • Assertion (A) is false, but Reason (R) is true.

  • Assertion (A) is true, but Reason (R) is false.

  • Both Assertion (A) and Reason (R) are false.

MCQ
Assertion and Reasoning
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Solution

Both Assertion (A) and Reason (R) are false.

Explanation:

Assertion (A) is false because a machine with a mechanical advantage greater than 1 multiplies force, not speed.

Reason (R) is false because a machine with a mechanical advantage less than 1 multiplies speed, not force.

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Notes

Since none of the options given in the textbook question were correct according to the rules of physics, I have added a new option (5).

  Is there an error in this question or solution?
Chapter 3: Machines - EXERCISE-2 [Page 59]

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