Arrange all the seven types of electro-magnetic radiations in increasing order of their frequencies. (You must begin with a radiation with lowest frequency and end with the one having the highest frequency.)
State how electric vector `vecE`, magnetic vector `vecB` and velocity vector `vecc` are oriented in an electromagnetic wave.

Explanation

Radio waves, Microwaves, Infrared radiation, Visible light, Ultraviolet radiation, X-rays and Gamma rays.
The electric vector `(vecE)`, magnetic vector `(vecB)` and the velocity vector `(vecc)` are mutually perpendicular to each other.