Which of the following transitions will have highest emission wavelength ?

Options

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

Answer

D

Explanation

`lamda prop (1)/(Delta E), E_(2 rarr 1) gt E_(5 rarr 2)`