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If, an electron in hydrogen atom jumps f...

If, an electron in hydrogen atom jumps from an orbit of lelvel n=3 to an orbit of level n=2, emitted radiation has a freqwuency (R= Rydbertg's contant ,c = velocity of light)

A

`(3Rc)/(27)`

B

`(Rc)/25`

C

`(8 Rc)/9`

D

`(5 Rc)/36`

Text Solution

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The correct Answer is:
D

`n=3, p=2, v=?`
`v=cR[1/P^(2)-1/n^(2)]`
`=cR[1/4-1/9]`
`=(5 Rc)/36`.
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