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

A proton a deuteron and an `alpha` - particle having the same kinetic energy are moving in circular trajectories in a constant magnetic of the trajectories of these particle, then

A

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

B

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

C

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

D

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

Text Solution

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The correct Answer is:
A
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