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A uniform magnetic field `B` and a uniform electric field `E` act in a common region. An electron is entering this region of space. The correct arrangement for it to escape undeviated is
A. image
C. image
D. image

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Correct Answer - C
For undeviated motion `|vecF_(e)|=|vecF_(m)|`, which happened when `vec(v),vec(E)` and `vec(B)` are mutually perpendicular to each other.

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