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A particle with charge q, moving with a momentum p, enters a uniform magnetic field normally. The magnetic field has magnitude B and is confined to a region of width d, where `d lt (p)/(Bq)` , The particle is deflected by an angle q in crossing the field. Then

A

`sin theta=(BQd)/p`

B

`sin theta=p/(BQd)`

C

`sin theta =(Bp)/(Qd)`

D

`sin theta =(pd)/(BQ)`

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The correct Answer is:
A
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