A charged particle goes undeflected in a...

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

`vecE||vecB,vecupsilon||vecE`

`vecE` is not collinear to `vecB`

`vecupsilon||vecB`but `vecE` is not collinear to `vecB`

`vecE||vecB`but `vecupsilon` is not collinear to `vecE`

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The correct Answer is:

C,D

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