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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
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Correct option is B
Force constant (k)∝1Length of spring⇒KK1=l1l=23ll⇒K1=32K.
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An ideal spring with spring-constant K is hung from the ceiling and a block of mass M is attached to its lower end. The mass is released with the spring initially unstretched. Then the maximum extension in the spring is
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