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A positively charged particle is moving ...

A positively charged particle is moving along the positive `X`-axis.You want to apply a magnetic field for a short time so that the particle may reverse its direction and move parallel to the negative `X`-axis.This can be done be applying the magnetic field along.

A

Y-axis

B

Z-axis

C

Y-axis

D

Z-axis only

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The correct Answer is:
A, B
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