Where does the Paschen series of spectral lines from hydrogen gas appear in the electromagnetic spectrum?
A) the radio range, with wavelengths longer than 0.01 m or 10 mm
B) the ultraviolet range, with wavelengths between 90 nm and 130 nm
C) the infrared range, with wavelengths longer than 700 nm
D) the visible range, with wavelengths between 350 nm to 660 nm

Question

Quizplus · Accepted Answer

The Paschen series of spectral lines from hydrogen gas appears in the infrared range, with wavelengths longer than 700 nm.

Where Does the Paschen Series of Spectral Lines from Hydrogen