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An electron revolves around the nucleus...

An electron revolves around the nucleus in a circular path with angular momentum `vecL`. A field `vecB` is applied perpendicular to the plane of its orbit. If the electron uniform magnetic experiences a torque T, then

A

`vecT ||vecL`

B

`vecT` anti - parallel to `vecL`

C

`vecT.vecL =0`

D

Angle between `vecT and vecL` is `45^@`

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