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Which of the following correctly lists electromagnetic radiation in order from longest to shortest wavelength?
gamma rays, ultraviolet, infrared, microwaves
microwaves, ultraviolet, visible light, gamma rays
radio waves, infrared, gamma rays, ultraviolet
television, infrared, visible light, X-rays
Answers (1)
When Maxwell predicted the existence of electromagnetic waves, the visible light waves were the only ones familiar to us. People barely knew about ultraviolet and infrared rays. However, by the end of the nineteenth century, X-rays and gamma-rays were also discovered. Today, we know that electromagnetic waves include different types of waves. Electromagnetic Spectrum is the classification of these waves according to their frequency. The waves used in common TV remote control are Infrared Rays. Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light
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