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Q.

The change in velocity when electron jumps from the first orbit to the second orbit is

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a

Half its original velocity

b

Twice its original velocity

c

One fourth its original velocity

d

Equal to its original velocity

answer is A.

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Detailed Solution

Vn=Znv1Assuming 'Z' is a constantV1=V11V2=V12Velocity of electron in 2nd orbit is half it's velocity in first orbit
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