Q.
Ratio of velocities of electron revolving in second orbit and fourth orbit of hydrogen atom is
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a
2 : 1
b
1 : 2
c
4 : 1
d
1 : 4
answer is A.
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Detailed Solution
Vn=ZnV1;Z=1Vn∝1nV1V2=n2n1V1V2=21
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