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Q.

An electron revolves in a circular orbit a plane perpendicular to a uniform magnetic field of induction 6×109wb/m2. Then the time period of revolution is

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a

5.96×109sec

b

5.96×103sec

c

5.96×105sec

d

5.96×1011sec

answer is B.

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Detailed Solution

T=2πmqB=2×3.14×9.1×10311.6×1019×6×109=5.95×103sec.

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