Radiation within the visible spectrum can appear black if it is low in power – more specifically, lower in power than its ...

carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays. All of these waves form part of the electromagnetic ...

The only thing that differentiates one type of electromagnetic radiation from any other is the energy carried by its photons. There's lots to discover in the electromagnetic spectrum. Here's a ...

Different changes in energy level need different frequencies of electromagnetic radiation. The absorption of radiation can be analysed by an ‘absorption spectrum’. The different black lines ...