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A proton deutron and an alpha -particle ...

A proton deutron and an `alpha` -particle having the same K.E. are moving in circular trajectories in a constant magnetic field. If `r_(p), r_(d)` and `r_(a)` denote respectively radius of the trajectories of these particles then

A

`r_(alpha)=r_(p)ltr_(d)`

B

`r_(alpha)gtr_(d)gtr_(p)`

C

`r_(alpha)=r_(d)ltr_(p)`

D

`r_(p)=r_(d)ltr_(alpha)`

Text Solution

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The correct Answer is:
A
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