A spring of stiffness k is compressed by a length 'A' and a ball is placed on the top of it. When the spring is released the ball is seen to rise through a height h. When two such springs are kept one over the other, and the combination is compressed by same length X what is the height reached by the ball, kept on the combined springs when released?

A spring of stiffness k is compressed by a length 'A' and a ball is pl

1.	A spring of stiffness k is compressed by a length 'A' and a ball is placed on the top of it. When the spring is released the ball is seen to rise through a height h. When two such springs are kept one over the other, and the combination is compressed by same length X what is the height reached by the ball, kept on the combined springs when released?
A.	h/2
B.	h
C.	\[4\times {{10}^{-\,4}}\]
D.	2h
Answer» B. h

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