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In fig., a parivle of charge +Q and mass...

In fig., a parivle of charge +Q and mass M is projected with velocity v in the plane of paper. Above teh dark line magnetic field is `(B_1)` and below it is `(B_2)` both perpendicular to the plane of paper. Which can be the possible path on which the charge will move? (Consider all posible cases for values of `(B_1)and `(B_2)`)

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
Radius `(R_1)=(mv)/(qB_(1))`. As speed cannot be changed by magnetic field, so in a given field radius should be same for every entry. So B and C are not possible.
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