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A proton, a deuteron and an alpha- parti...

A proton, a deuteron and an `alpha`- particle are accelerated by the same potential and then enter a uniform magnetic field perpendicularly. The ratio of radii of their circular paths will be

A

`1:sqrt2:sqrt2`

B

`2:2:1`

C

`1:2:1`

D

`1:1:1`

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CHHAYA PUBLICATION-ELECTROMAGNETISM -EXERCISE
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