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What is the shortest wavelength line in ...

What is the shortest wavelength line in the Paschen series of `Li^(2+)` ion?

A

`(R)/(9)`

B

`(9)/(R)`

C

`(1)/(R)`

D

`(9R)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
3
`(1)/(lambda)=RZ^(2)[(1)/(n_(1)^(2))-(1)/(n_(2)^(2))]=Rxx3^(2)[(1)/(3^(2))-(1)/(oo^(2))]" "rArr" "R or lambda=(1)/(R)`
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