Question

The extreme wavelength of Paschen series are
A. `0.365 mu m " and " 0.565 mu m`
B. `0.818 mu m " and " 1.89 mu m`
C. `1.45 mu m " and " 4.04 mu m`
D. `2.27 mu m " and " 7.43 mu m`

Answer 1

Correct Answer - B