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A nucleus of " "(92)^(238)U, originally ...

A nucleus of `" "_(92)^(238)U`, originally at rest, emits an `alpha`-particle with a speed `nu`. Recoil speed of the daughter nucleus will be

A

`(4nu)/234`

B

`(4nu)/238`

C

`(234)/(4nu)`

D

`(238)/(4nu)`

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The correct Answer is:
A
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