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A hollow smooth uniform A of mass 'm' ro...

A hollow smooth uniform `A` of mass 'm' rolls without sliding on a smooth horizontal surface collides head to elastically with another stationary smooth solid sphere `B` of the same mass `m` and same radius. The ratio of kinetic energy of 'B' to that of 'A' just after the collision is -
.

A

`1:1`

B

`2:3`

C

`3:2`

D

`4:3`

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