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A charged paricle goes undeflected in a ...

A charged paricle goes undeflected in a region containing electric and magnetic field. It is possible that

A

`vec(E )||vec(B), vec(y)||vec(E )`

B

`vec(E )` is not parallel `vec(B)`

C

`vec(V) ||vec(B)` but `vec(E )` is not parallel to `vec(B)`

D

`vec(E )||vec(B)` but `vec(V)` is not parallel to `vec(E )`

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The correct Answer is:
A, B
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