Question: What is Electromagnetic spectrum?

Stephen Davitt answered on 16 Nov 2016:

The electromagnetic spectrum is the name given to the collection of the different types of electromagnetic waves, these are waves that are like light, they are formed of energy not physical objects moving.

Light is included in the electromagnetic spectrum but so are radio waves, microwaves, wi-fi, mobile phone signals, x-rays, gamma rays, so there’s lots to this electromagnetic spectrum and its very interesting