A particle having mass m, charge q, enters a cylindrical region having uniform magnetic field B in the inward direction as shown. If the particle is deviated by 600 as it emerges out of the field, then what is the time spent by it in the field?
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a
2πmqB
b
2πm3qB
c
πm3qB
d
It depends on the speed of particle.
answer is C.
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Detailed Solution
Angle rotated in magnetic field = 600So time taken should be 16th of time period.t=T6=16 2πmqB= πm3qB