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A particle moving with velocity v having...

A particle moving with velocity v having specific charge (q/m) enters a region of magnetic field B having width `d=(3mv)/(5qB)` at angle` 53^(@)` to the boundary of magnetic field. Find the angle `theta` in the diagram.

A

`37^(@)`

B

`60^(@)`

C

`90^(@)`

D

none

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The correct Answer is:
C
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