Rays

The infant has been exposed to radioactive rays.

X rays are used to locate breaks in bones.

The sudden increase of ultraviolet rays made the researchers believe in the existence of ozone holes.

Ultraviolet rays are harmful to us.

Ultraviolet rays can cause skin cancer.

In fact, the inhabitants have been exposed to radioactive rays.

Too many sun's rays are harmful to your skin.

The lighthouse was beaming forth rays of light.

A beam of white light is split by a prism into rays of various colors.

He put on sunglasses to protect his eyes from ultraviolet rays.