Q.

If the radius of an orbit is r and the velocity of electron in it is v, then the frequency of electron in the orbit will be

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a

2πrv

b

2πvr

c

vr2π

d

v2πr

answer is D.

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Detailed Solution

T=2πrv ⇒1f=2πrv ⇒f=v2πr
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