Name the electromagnetic radiations used for
water purification?

Name the electromagnetic radiations used for eye surgery.

Name the electromagnetic radiations used for viewing the objects or to take the photograph through haze and fog.

Name the electromagnetic radiations used for studying the crystal structure of solids.

An electromagnet uses

Welders wear special goggles or face masks with glass windows to protect eyes from electromagnetic radiations. Name the radiations and write the range of their frequencies.