Question

In which region of the electromagnetic spectrum does the Balmer series lie?
A. UV
B. Visible
C. Infrared
D. Far infrared

Answer 1

Hint: Balmer series lines can be seen by naked eyes and it was discovered first. The Balmer series was discovered first. Spectral lines of the Balmer series are colored. The Balmer series was discovered by Johann Balmer.

 Complete step by step answer:
Electromagnetic radiation spectrum is having many types of radiations, which are arranged in a decreasing or increasing order of their wavelengths. Increasing order of wavelength is as: cosmic rays < gamma rays < x-rays < UV radiations < visible light < infrared radiations < microwaves < radio waves. Wavelength of spectral lines of the Balmer series are ranging between 400 nm to 780 nm and it is the range of wavelengths of visible light, so Balmer series lie in the visible light region. Wavelength of UV radiation is less than that of visible light and wavelength of infrared waves is greater than that of visible light.
Correct answer is (B) visible.

Additional Information: Lyman series lies in UV region, Balmer series lies in visible light, Paschen series lies in infrared region, Brackett series lies in infrared region and Humphry series lies in far infrared region. Wavelength of spectral lines are inversely proportional to frequency of spectral lines. A group of spectral lines within a region is known as series. Balmer series having 7 colors of spectral lines, in which the red line is having maximum wavelength and the violet line is having minimum wavelength. Red line is having minimum frequency while the violet line is having maximum frequency. First line of any series is having less energy as compared to the second line of the same series.

Note:
Visible light has seven colors and spectral lines of the Balmer series are coloured. Wavelengths of spectral lines of the Balmer series are greater than that of Lyman series.