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A proton beam is being accelerated by a ...

A proton beam is being accelerated by a cyclotron. Each of the dees has a radius of 1.2 m, and a magnetic field of `0.2 Wb.m^(-2)` is applied normal to them. What is
the energy attained, in million eV, by each proton? Given, charge of proton `=1.6xx10^(-19)C`, its mass `=1.67xx10^(-27)kg,1eV=1.6xx10^(-19)J`

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The correct Answer is:
2.76 MeV
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