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An electron, a proton, a deuteron and an...

An electron, a proton, a deuteron and an alpha particle, each having the same speed are in a region of constant magnetic field perpendicular to the direction of the velocities of the particles. The radius of the circular orbits of these particles are respectively `R_(e), R_(p), R_(d)` and `R_(alpha)` It follows that

A

`R_(e) = R_(p)`

B

`R_(p) = R_(d)`

C

`R_(d) = R_(a)`

D

`R_(p) = R_(a)`

Text Solution

Verified by Experts

The correct Answer is:
C
`r = (mv)/(qB) implies r prop (m)/(q)`
`R_(e) lt R_(p)` and `R_(d) and R_(a)`
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