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Assertion : The work done during a rou...

Assertion : The work done during a round trip is always zero. Reason : No force is required to move a body in its round trip.

A

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

B

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

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

Text Solution

Verified by Experts

The correct Answer is:
D
In a round trip work done is zero only when the force is conservative in nature.
Force is always required to move a body in a conservative or non-conservative field
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Knowledge Check

  • A : The work done by a force during round trip is always zero. R : The average value of force in round trip is zero.

    A
    If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).
    B
    If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2).
    C
    If Assertion is true statement but Reason is false, then mark (3).
    D
    If both Assertion and Reason are falsė statements, then mark (4).

  • Assertion : Power developed in circular motion is always zero. Reason : Work done in case of circular motion is zero.

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

  • Assertion (A) : Work done in uniform circular motion is zero. Reason (R) : Force is always directed along displacement .

    A
    If both A and R are true and R is the correct explanation of A.
    B
    If both A and R are true but R is not the correct explanation of A.
    C
    If A is true but R is false
    D
    If A is false but R is true.

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    Assertion , No work is done if the displacement is zero Reason: Work done by the force is defined to be the product of component of the force in the the direction of the displacement and the magnitude of displacement.

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