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A positive charge particle of mass m and...

A positive charge particle of mass m and charge q is projected with velocity v as shown in Fig. If radius of curvature of charge particle in magnetic field region is greater than d, then find the time spent by the charge particle in magnetic field.

A

`(m)/(2qB)`

B

`(2m)/(qB)sin^(-1)((d)/(R))`

C

`(m)/(qB)`

D

`(m)/(qB)sin^(-1)((2d)/(R))`

Text Solution

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The correct Answer is:
b
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