Question

What are the $7$ electromagnetic waves?

Answer 1

Electromagnetic spectrum

1. The electromagnetic spectrum is usually classified into $7$ types of electromagnetic waves, in decreasing or increasing order of frequency.
2. The figure on the right shows the arrangement of electromagnetic waves in terms of increase in frequency or decrease in wavelength.

The $7$ electromagnetic waves arranged in the decreasing order of frequency are:

1. Gamma rays
2. X-rays
3. UV rays
4. Visible light rays
5. Infrared rays
6. Microwaves
7. Radio-waves