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A radioactive nucleus, initially at rest...

A radioactive nucleus, initially at rest, decays by emitting a `beta` -particle and a neutrino (n) in mutually perpendi directions. The momentum `P_N` of recoil nucleus will be

A

pn +`pbeta`

B

`sqrt(p^2)_n+(p^2)_beta`

C

`((p_npbeta))/((p_n+pbeta))`

D

`(p_n+pbeta)(pbeta)/p_n`

Text Solution

Verified by Experts

The correct Answer is:
B
Resolve momentum `p_N` into two perpendicular components and equate with momenta of neutrinod and `beta` -particle
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