ElectroMagnetic InductionHard
Question
A particle of mass m and charge q, moving with velocity V enters Region II normal to the boundary as shown in the figure. Region II has a uniform magnetic field B perpendicular to the plane of the paper. The length of the Region II is l. Choose the correct choice(s).
Figure:
Figure:
Options
A.The particle enters Region III only if its velocity V > 
B.The particle enters Region III only if its velocity V <
C.Path length of the particle in Region II is maximum when velocity V =
D.Time spent in Region II is same for any velocity V as long as the particle returns to Region I
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