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Questions  

A charged particle of charge q and mass m enters perpendicularly to a region of transverse magnetic field B. If length of region in which magnetic field is acted is 2mvqb, then deflection of charge when it comes out from field is

a
00
b
900
c
450
d
1800

detailed solution

Correct option is D

deflection in a magnetic field when a charged particle is  moving is sinθ=dr and r is mvqB here d is more than r so deflection will be 1800

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