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alpha particles, each of energy 2 MeV, a...

`alpha` particles, each of energy 2 MeV, are transmitted in a uniform magnetic field B. If the magnetic field is increased to double and deuterons are passed in the same system, the energy of a transmitted deuteron is given by

A

8 MeV

B

4 MeV

C

12 MeV

D

6 MeV

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The correct Answer is:
B
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