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A beam of ions with velocity 2xx10^5ms^-...

A beam of ions with velocity `2xx10^5ms^-1` enters normally into a uniform magnetic field of `0*04` tesla. If the specific charge of ion is `5xx10^7Ckg^-1`, find the radius of the circular path described.

A

`0.10 m`

B

`0.16 m`

C

`0.20 m`

D

`0.25 m`

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The correct Answer is:
A
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