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Assertion (A) : Work done in uniform cir...

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.

Text Solution

Verified by Experts

The correct Answer is:
C
In uniform circular motion, the force is always directed perpendicular to the displacement.
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Knowledge Check

  • 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 : Work done by the centripetal force in moving a body along a circle is always zero. Reason : Because displacement of the body is along the force.

    A
    If both, Assertion and Reason are true and Reason is correct explantion of Assertion.
    B
    If both, Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
    C
    If Assertion is true but the Reason is false.
    D
    If both, Assertion and Reason are false.

  • Statement - I: Work done in moving a body in non-uniform circular motion is zero. Statement - II: The centripetal force always acts along the radius of the circle

    A
    If both Statement- I and Statement- II are true, and Statement - II is the correct explanation of Statement– I.
    B
    If both Statement - I and Statement - II are true but Statement - II is not the correct explanation of Statement – I
    C
    If Statement - I is true but Statement - II is false.
    D
    If Statement - I is false but Statement - II is true

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