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The radius of first Bohr orbit is x, the...

The radius of first Bohr orbit is x, then de-Broglie wavelength of electron in 3rd orbit is nearly

A

`2piX`

B

`6piX`

C

9X

D

X/3

Text Solution

Verified by Experts

The correct Answer is:
B
`2pir=nlamda`
`2pi(9X)=3lamda`
`1=6piX`
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