Question
a spring is loaded with two blocks of masses m1 and m2,where m1 is rigidly fixed with the spring and m2 is just kept on the block m1.the maximum energy of oscillation is possible for the system having the block m2 in contact with m1 is
(1)m1^2g^2/2k (2)m2^2g^2/2k (3)(m1+m2)^2g^2/2k (4)none of these