1.

Match the column I with column II. A. A-p,B-q,C-r,D-sB. A-q,B-r,C-s,D-pC. A-s,B-r,C-q,D-pD. A-s,B-p,C-q,D-r

Answer» Correct Answer - D
When a body does some work against friction, its kinetic energy decreases. `therefore` A-s
Work done by a body is independent of time `therefore` B-p
Power of a body (P=W/t) varies inversely as time.
C-q
When work done over a closed path is zero, force must be conservative, `therefore` D-r


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