1.

A body of mass m having an initial velocity v, makes head on collision with a stationary body of mass M. After the collision, the body of mass m comes to rest and only the body having mass M moves. This will happen only when             [MP PMT 1995]

A.          \[m>>M\]
B.                       \[m<<M\]
C.          \[m=M\]
D.                       \[m=\frac{1}{2}M\]
Answer» D.                       \[m=\frac{1}{2}M\]


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