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If radius of second stationary orbit (in...

If radius of second stationary orbit (in Bohr's atom) is R then radius of third orbit will be :

A

`R//3`

B

`9R`

C

`R//9`

D

`2.25 R`

Text Solution

Verified by Experts

The correct Answer is:
D
`lambda=(h)/(mv)=(6.62xx10^(-34)xx3600)/(0.2xx5)`
`lambda=2.38 xx10^(-30)` metre
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