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A 10eV electron is circulating in a plan...

A 10eV electron is circulating in a plane at right angles to a uniform field at magnetic induction `10^(-4) Wb//m^(2)` (=1.0 gauss). The orbital radius of the electron is

A

11cm

B

18 cm

C

12 cm

D

15 cm

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The correct Answer is:
A
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