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Which of the following correctly lists electromagnetic radiation  in order from longest to shortest wavelength?

Option: 1

gamma rays, ultraviolet, infrared, microwaves

Option: 2

microwaves, ultraviolet, visible light, gamma rays

Option: 3

radio waves, infrared, gamma rays, ultraviolet


Option: 4

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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Deependra Verma

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