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If the radius of firs Bohr's orbit is x,...

If the radius of firs Bohr's orbit is x, then de-Broglie wavelenght of electron in 3rd orbit is nearly `(npix)` Find value of n

A

`2pir`

B

`6pir`

C

9x

D

` (x)/(9)`

Text Solution

Verified by Experts

The correct Answer is:
B
`" " r_(3)=(3)^(2)*r_(1)=9x`
Now, `" " 3lambda_(3)=(2pir_(3))=18pir`
`:. " " lambda_(3)=6pix`
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