The rest mass of the deutron `._(1)^(2)` H is equivalent ot an energy of 1876 MeV the rest mass of a proton is equivalent to 939 MeV and that of a neutrom is 940 MeV A deuteron may disintegrate to proton and neutron if it :

Options

A. emits an X-ray photon of energy `2 MeV`
B. captures an X-ray photon of energy `2 MeV`
C. emits an X-ray photon of energy `3 MeV`
D. captures an X-ray photon of energy `3 MeV`

Answer

d

Explanation

Disintegration of deuteron to a proton and a neutron can be represented by
`._(1)^(2)H +Q rarr ._(1)^(1)H +._(0)^(1)n`
The energy captured is the `gamma`-ray photon `E_(gamma)` is given by
`E_(gamma)0 + 1876 =939 +940`
`rArr E_(gamma) =(939 +940)-1876=3 MeV`.