Uses of Gammma Rays

Why can Radio waves be received at long distances from the transmitter?

Uses of infrared

Uses of ultraviolet

What do all EM waves have in common?

Why are Fluorescent lamps not harmful to humans even though they emit ultraviolet radiation?

How does a camera create a photograph using visible light?

How can the amount of light entering the camera be controlled?

What can X ray exposure lead to?