Electromagnetic radiation is more common than you think. radio andtv stations emit radio waves when they broadcast their programs; microwaves cook your food in a microwave oven; dentists use x raysto check your teeth. even though they have different names anddifferent applications, these types of radiation are really all thesame thing: electromagnetic (em) waves, that is, energy thattravels in the form of oscillating electric and magnetic fields

consider the following:
radio waves emitted by a weather radar system to detectraindrops and ice crystals in the atmosphere to study weatherpatterns;
microwaves used in communication satellite transmissions;
infrared waves that are perceived as heat when you turn on aburner on an electric stove;
the multicolor light in a rainbow;
the ultraviolet solar radiation that reaches the surface of theearth and causes unprotected skin to burn; and
x rays used in medicine for diagnostic imaging