Q .     A proton and an `alpha`-particle, accelerated
through the same potential difference, enter a
region of uniform magnetic field normally. If
the radius of the proton orbit is `10 cm`, then
radius of `alpha` particle is

VIT 2014
A

`10 cm`

B

`10 sqrt(2) cm`

C

`20 cm`

D

`5 sqrt(2) cm`

HINT

Radius of path `r_(i) = 1/beta sqrt((2mv)/(q))`
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