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What transition in the hydrogen spectrum...

What transition in the hydrogen spectrum would have the same wavelength as the Balmer transition `n=4` to `n=2` of `He^(+)` spectrum ?

A

`n_1 = 1 , n_2 =2`

B

`n_1 = 2, n_2 =3`

C

`n_1 = 3, n_2 =2`

D

`n_1 =2, n_2 =4`

Text Solution

Verified by Experts

The correct Answer is:
A
`R xx Z^2 [ (1)/(n_1^2) - (1)/(n_2^2) ] = R [ (1)/(n_1^2) -(1)/(n_2^2)]`
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