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If mass of an atom is M moving with spee...

If mass of an atom is M moving with speed v, what will be its speed after the emission of an `alpha`-particle if speed of `alpha`-particle is zero ?

A

`(Mv)/(M+2)`

B

`(Mv)/(M-4)`

C

`(Mv)/(M+4)`

D

`(M-4)/(Mv)`

Text Solution

Verified by Experts

The correct Answer is:
B
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