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Which of the following transitions have ...

Which of the following transitions have minimum wavelength

A

`n_2 to n_1`

B

`n_3 to n_1`

C

`n_4 to n_2`

D

`n_4 to n_1`

Text Solution

Verified by Experts

The correct Answer is:
D
`DeltaE = hv = (hc)/(lambda) = "or " lambda = (hc)/(Delta E)`
`i.e., lambda prop 1/(DeltaE)`
`Delta E = E_4 - E_1` will be maximum and hence `lambda` will be minimum.
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