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Last updated date: 25th Nov 2023
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MVSAT Dec 2023

Electromagnetic radiation of highest frequency is
A. Infrared radiations
B. Visible radiation
C. Radio waves
D. Gamma rays.

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Hint: The radiations of the electromagnetic are classified based on the parameters such as, the energy, the wavelength and the frequency. Some of the radiations have highest energy, frequency and wavelength, some have medium and some others have the shortest energy, frequency and wavelength.

Complete step by step answer:
There are many other "colors" of light that we cannot see. These include UV and infrared (IR) "light" that is just beyond the range of human vision. They also include more exotic forms of radiation such as X-rays, gamma rays, and radio waves. Together, all of these different "colors" of light are called the electromagnetic spectrum, or EM spectrum
Each section of the electromagnetic (EM) spectrum has characteristic energy levels, wavelengths, and frequencies associated with its photons. Gamma rays have the highest energies, the shortest wavelengths, and the highest frequencies. Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, UV rays, visible light, infrared radiation, and radio waves.
 The electromagnetic radiation of highest frequency is Gamma rays.
So, the correct answer is “Option D”.

Note: There are a total of 7 classifications in electromagnetic radiation. They are: gamma rays, X rays, Ultraviolet rays, visible rays, infrared rays, microwaves and radio waves. The white light is made up of different colors from violet, indigo, blue, grey, yellow, orange and red.