JEE Advanced | 2013MagnetismHard

Question

A particle of mass M and positive charge Q, moving with a constant velocity , enters a region of uniform static magnetic field normal to the x-y plane. The region of the magnetic field extends from
x = 0 to x = L from all values of y. After passing through this region, the particle emerges on the other side after 10 milliseconds with a velocity The correct statements(s) is (are) :-

Options

A.The direction of the magnetic field is - z direction
B.The direction of the magnetic field is + z direction
C.The magnitude of the magnetic field units.
D.The magnitude of the magnetic field is units.

Solution

            
units.by direction of ; magnetic field is in - z direction
Time

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