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A particle A makes perfectly elastic col...

A particle A makes perfectly elastic collision with particle B at rest. They fly apart in opposite directions with equal speed. The ratio of their masses `(m_(A))/(m_(B))` is

A

Both coins revolves with the disc

B

None of the coins revolves with the disc

C

Coin placed at `4cm` will ship while `14cm` revolves with disc

D

Coin placed at `14cm` will ship while `4cm` revolves with disc

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