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JEE Advanced 2013 Paper 1

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Question : 14

Total: 60

A particle of mass M and positive charge Q, moving with a constant velocity

‌ms−1, 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 for all values of y. After passing through this region, the particle emerges on the other side after 10 milliseconds with a velocity

)‌ms−1.The correct statement(s) is (are):

The direction of the magnetic field is -z direction.
The direction of the magnetic field is +z direction
The magnitude of the magnetic fieId
50Mπ
3Q
units
The magnitude of the magnetic field is
100πM
3Q
units

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