Photoelectric EffectHard
Question
Binding Energy per nucleon of a fixed nucleus XA is 6 MeV. It absorbs a neutron moving with KE = 2 MeV, and converts into Y at ground state, emitting a photon of energy 1 MeV. The Binding Energy per nucleon of Y (in MeV) is -
Options
A.
B.
C.7
D.
Solution
BE of X = 6A
BE of Y = 6A − 2 + 1 = 6A − 1
[Because absorption of energy decreases BE and releas of energy increases BE]
In Y nuclues there are A + 1 nuclues.
∴
= 
BE of Y = 6A − 2 + 1 = 6A − 1
[Because absorption of energy decreases BE and releas of energy increases BE]
In Y nuclues there are A + 1 nuclues.
∴
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