A wire is suspended by one end. At the other end a weight equivalent to \( 20 \mathrm{~N} \) for....

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A wire is suspended by one end. At the other end a
\( \mathrm{P} \)
weight equivalent to \( 20 \mathrm{~N} \) force is applied. The ratio
W
of the increase in energy of the wire to the decrease in gravitational potential energy as load moves downwards by \( 1 \mathrm{~mm} \), will be
(1) 1
(2) \( 1 / 4 \)
(3) \( 1 / 3 \)
(4) \( 1 / 2 \)


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