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A^(238) Unucleus decays by emitting an a...

`A^(238) U`nucleus decays by emitting an alpha particle of speed `ums^(-1)` The recoil speed of the residual nucleus is: (in `ms^(-1)`)

A

`(2u)/(238)`

B

`(3u)/(234)`

C

`(4u)/(234)`

D

`(5u)/(238)`

Text Solution

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The correct Answer is:
C
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