Please explain the following 30th question with reason.

Dear Student

In a circular motion under magnetic field, the centripetal force is provided by the magnetic force.

(mv2)/r = qvB

r = (mv)/(Bq)

T = (2Πr)/v

Putting r = (mv)/(Bq)

T = (2Πm)/(Bq)

Time period is independent of the velocity of charged particle.

The correct option is D.


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