electromagnetic waves

Waves composed of undulating electrical fields and magnetic fields . The different kinds of electromagnetic waves, such as light and radio waves , form the electromagnetic spectrum . All electromagnetic waves have the same speed in a vacuum , a speed expressed by the letter c (the speed of light ) and equal to about 186,000 miles (or 300,000 kilometers ) per second.

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Example Sentences

These electromagnetic waves produce oscillations in the antenn of a receiving station.

Physics tells us that certain electromagnetic waves start from the sun, and reach our eyes after about eight minutes.

Theory that light consists of electromagnetic waves—Clerk-Maxwell, England, 1873.

It absorbed and dissipated electromagnetic waves rather than reflecting them.

This energy is transmitted through the free ether in waves, which are known as electromagnetic waves.

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