List of top Physics Questions on Work and Energy asked in GAT-B

Identify the statement which is NOT true for a 'conservative force'.
A bullet of mass 20 g, moving at 50 m/s penetrates 20 cm into a wooden block. What is the magnitude of the force exerted on the wooden block?
A copper and a steel wire of the same diameter are connected end to end. A deforming force F is applied to this composite wire which causes a total elongation of 3 cm. The two wires will have