Nuclear Physics and RadioactivityHard
Question
A radioactive nucleus of mass M emits a photon of frequency 
and the nucleus recoil. The recoil energy will be
and the nucleus recoil. The recoil energy will beOptions
A.
B.
C.zero
D.
Solution
Moment of emitted photon
= pphoton =
From the law of consevation of linear momentum,
Momentum of recoil nucleus
= pnucleus = pphoton
∴
where
is the recoil speed of the nucleus
or
......(i)
The recoil energy of the nucleus
[Using (i)]
= pphoton =
From the law of consevation of linear momentum,
Momentum of recoil nucleus
= pnucleus = pphoton
∴
where
is the recoil speed of the nucleusor
......(i)The recoil energy of the nucleus
[Using (i)]Create a free account to view solution
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