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A particle of charge -q and mass m enter...

A particle of charge -q and mass m enters a uniform magnetic field B ( perpendicular to paper inwards) P with a velocity `v_(0)` at an angle `alpha` and leaves the free at Q with velocity v at angle `beta` as shown in figure. The

A

`alpha = beta`

B

`v = v_(0)`

C

`PQ=(2mv_(0)sinalpha)/(Bq)`

D

particle remains in the field for time `t = (2m(pi-alpha))/(Bq)`

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The correct Answer is:
A, B, C, D
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