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If B.B/ nucleon in ""(3)^(7)Li and ""(2)...

If B.B/ nucleon in `""_(3)^(7)Li and ""_(2)He^(4)` nuclic are 5.6 Mev and 7.06 MeV, then in the reaction `p+""_(3)^(7)Li to 2 ""_(2)^(4) He`, energy of proton must be :

A

39.2MeV

B

28.24MeV

C

17.28MeV

D

1.46MeV

Text Solution

Verified by Experts

The correct Answer is:
C
B.E. of `""_(3)Li^(7)=7 xx 5.60 =39.20 MeV`
B.E. of `""_(2)He^(4)=4 xx 7.06 =28.24MeV`
So. B.E. of 2 `(""_(2)He^(4))=56.48 Mev`
Energy of protons =56.48-39.20=17.28MeV
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