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The region between y =0 and y=d constai...

The region between y =0 and y=d constains a magnetic field `vecB = Bvecz`. A particle of mass m and charge q enters of the region with a velocity `vecv = v veci`. If `d =(mv)/(2qB)` the acceleration of the charged particle at the point of its emergence at the other side is :

A

`(qvB)/(m) ((sqrt3)/(2) I + (1)/(2)j )`

B

`(qvB)/(m) ((1)/(2) I - (sqrt3)/(2) j )`

C

`(qvB)/(m) ((I +j)/(sqrt2))`

D

`(qvB)/(m ) ((-j + i)/(sqrt2))`

Text Solution

Verified by Experts

The correct Answer is:
D
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