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A proton, a deuteron and an alpha partic...

A proton, a deuteron and an alpha particle moving with equal kinetic energies enter perpendicularly into a magnetic field. If `r_p, r_d and r_a` are the respective radii of the circular paths, find the ratios `r_p/r_d and r_p/ r_a.`

A

`1 : 1 : 1`

B

`1 : sqrt2 : 1`

C

`1 : sqrt2 : sqrt2`

D

`1 : sqrt2 : 2`

Text Solution

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The correct Answer is:
B
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