Assertion: Work done in moving a body over a closed loop is zero for every force in nature. Reason: Work done does not depend on nature of force.

Question

Assertion: Work done in moving a body over a closed loop is zero for every force in nature. Reason: Work done does not depend on nature of force. (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 in the motion of a body over a closed loop is zero only when the body is moving under the action of conservative forces (like gravitational or electrostatic forces). It is not zero when the forces are non-conservative e.g. frictional forces etc.

Q. Assertion : Work done in moving a body over a closed loop is zero for every force in nature. Reason : Work done does not depend on nature of force.

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 in the motion of a body over a closed loop is zero only when the body is moving under the action of conservative forces (like gravitational or electrostatic forces). It is not zero when the forces are non-conservative e.g. frictional forces etc.

Q. Assertion : Work done in moving a body over a closed loop is zero for every force in nature.
Reason : Work done does not depend on nature of force.