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According to Bohr's theory the moment of...

According to Bohr's theory the moment of momentum of an electron revolving in second orbit of hydrogen atom will be

A

`(h)/(pi)`

B

`2pih`

C

`(2h)/(pi)`

D

`(pi)/(h)`

Text Solution

Verified by Experts

The correct Answer is:
A
According to Bohr.s second postulate
Angular momentum, `L=(nh)/(2pi)`
Angular momentum is also called a moment of momentum.
For second orbit, n = 2
`L=(2h)/(2pi)=(h)/(pi)`
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