They are used by doctors and dentists for checking of broken bones, cracked bones or fractured bones and dental inspection respectively.

Yes, they are emmitted by the sun and it is the Ultra-Violet rays that causes sunborns on our skin.

They are used to detect counterfeit money and are used in sunbecls.

Nuclear power plants. Big particle accelerators

This is the only part of the electromagnetic spectrum that can be seen with our eyes.

Examples of visible light is the colour of the rainbow, which consists of the following colors: red, orange, yellow, green, blue, indigo and violet.