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A proton of mass m and charge +e is movi...

A proton of mass m and charge `+e` is moving in a circular orbit in a magnetic field with energy `1 MeV`. What should be the energy of alpha-particle (mass=`4m` and charge=`+2e`), so that it can revolve in the path of same radius?

A

`1MeV`

B

`4MeV`

C

`2MeV`

D

`0.5MeV`

Text Solution

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The correct Answer is:
A
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