1.

A spring of force constant k is cut in two parts at its one-third lingth. When both the parts are stretched by same amount. The word done in the two parts will be .A. equal in bothB. greater for the longer partC. greater for the shorter for the shorter partD. data insufficient.

Answer» Correct Answer - C
`kprop1/l`
l of shorter part is less, therefore value of k is more,
`W =(1)/(2)kx^(2)`
`:. W^("shorter part")` will be more.


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