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The velocity of electron in the third Bo...

The velocity of electron in the third Bohr orbit of hydrogen is v. The velocity of the electron in the first orbit would be:

A

9v

B

3v

C

v/3

D

v/9

Text Solution

Verified by Experts

The correct Answer is:
B
`v_(n)=(2.19xx10^(6)Z)/n ms^(-1)`
`v_(n)prop 1/n` for H atom
`(v_(3))/(v_(1))=1/3`if `v_(3)=v`, then `v_(1)=3v`
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