In which of the following transition will the wavelength be minimum ?

Options

A. n=5 to n=4
B. n=4 to n=3
C. n=3 to n=2
D. n=2 to n=1

Answer

D

Explanation

`DeltaE=(hc)/(lambda) implies lambda prop (1)/(Delta E)`
`DeltaE` is maximum for n=2 to n=1