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 direction of the displacement and the magnitude of displacement.

Question

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

Tardigrade Admin · Accepted Answer

Work done W = Fd cos θ if displacement is zero, i.e. d = 0, W = 0

Q. 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 direction of the displacement and the magnitude of displacement.

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

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

If assertion is true but reason is false

If both assertion and reason are false

Work done
$W = F d cos θ$
if displacement is zero, i.e. $d = 0$ , $W = 0$

Q. 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 direction of the displacement and the magnitude of displacement.