A) 2 MeV
B) 1 MeV
C) 0.5 MeV
D) 4 MeV
Correct Answer: B
Solution :
For proton \[r=\frac{\sqrt{2m(KE)}}{qB}\] So \[q\propto \sqrt{m(KE)}\] Hence \[\frac{e}{2e}=\sqrt{\frac{({{m}_{p}})(1MeV)}{(4{{m}_{p}})(KE)}}\] \[\frac{1}{4}=\frac{1MeV}{4KE}\] \[KE=1\,MeV\]You need to login to perform this action.
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