1.

Two identical balls A and B are released from the positions shown in figure. They collide elastically on horizontal portion\[M/N\]. All surfaces are smooth. The ratio of heights attained by A and B after collision will be

A. \[1:4\]
B. \[2:1\]
C. \[4:13\]
D. \[2:5\]
Answer» D. \[2:5\]


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