The electromagnetic spectrum is a family of (1) electromagnetic waves. These waves have a side-to-side motion, and they all travel at the same (2) speed but vary in frequency and in (3) wavelength.(4) Frequency is the number of waves that pass a point in one second. Light that we used to see with (5) falls within the visible spectrum. The different (6) colors of light is a very small part of this spectrum that we see. The different colors we see in light are due to differences in wavelength. The highest wavelength frequency waves have the (7) lowest frequency and are known as (8) radio waves used in medicine. The (9) radio waves, which are lower frequency waves, are used for TV and radio communication. (10) Infrared waves are used in night vision cameras and remote controls.
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The electromagnetic spectrum is a family of (1) electromagnetic waves. These waves have a side-to-side motion, and they all travel at the same (2) speed but vary in frequency and in (3) wavelength.(4) Frequency is the number of waves that pass a point in one second. Light that we used to see with (5) falls within the visible spectrum. The different (6) colors of light is a very small part of this spectrum that we see. The different colors we see in light are due to differences in wavelength. The highest wavelength frequency waves have the (7) lowest frequency and are known as (8) radio waves used in medicine. The (9) radio waves, which are lower frequency waves, are used for TV and radio communication. (10) Infrared waves are used in night vision cameras and remote controls.