A particle of mass 'm' and charge 'q' moves with a constant velocity 'v' along the positive x-direction. It enters a region containing a uniform magnetic field B directed along the negative Z-direction, extending from x = a to x=b. The minimum value of 'v' required, so that the particle can just enter the region x > b is

A particle of mass 'm' and charge 'q' moves with a constant velocity '

1.	A particle of mass 'm' and charge 'q' moves with a constant velocity 'v' along the positive x-direction. It enters a region containing a uniform magnetic field B directed along the negative Z-direction, extending from x = a to x=b. The minimum value of 'v' required, so that the particle can just enter the region x > b is
Answer» `(qbB)/(m )` `(Q(B-a)B)/(m)` `(qa B)/(m )` `(q (b+a )B)/( 2m)` ANSWER :B

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