JEE Advance - Physics (1999 - No. 2)
A spring of force-constant k is cut into two pieces such that one piece is double the length of the other. Then the long piece will have a force-constant of
$$\left( {{2 \over 3}} \right)k$$
$$\left( {{3 \over 2}} \right)k$$
3 k
6 k
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