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An alpha -particle and a proton are acce...

An `alpha` -particle and a proton are accelerated from rest thruogh the same potential difference and both enter a uniform perpendicular magnetic field. Find the ratio of their radii of curvature.

A

Deflected in the +x direction

B

Deflected in the - x direction

C

Deflected in the +y direction

D

Deflected in the -y direction

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The correct Answer is:
B
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