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The figure shows two regions of uniform ...

The figure shows two regions of uniform magnetic field of strengths 2B and 2B. A charged particle of mass m and charge q enters the region of the magnetic field with a velocity `upsilon = (q B w)/(m)`, where w is the width of each region of the magnetic field. The time taken by the particle to come out of the region of the magnetic field is

A

`(4 pi m)/(qB)`

B

`(2 pi m)/(qB)`

C

`(pi m)/(2qB)`

D

`(pi m)/(qB)`

Text Solution

Verified by Experts

The correct Answer is:
D
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