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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

`2px`

B

`6px`

C

`9x`

D

`x//3`

Text Solution

Verified by Experts

The correct Answer is:
B
`r_(n) = n^(2)r_(1), mv_(n)r_(n) = (nh)/(2pi), lambda = (h)/(mv_(n))`
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