Question

Name the various known electromanetic radiations . State the range of their frequencies.​

Answer 1

Explanation:

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Answer 2

Answer:

The EM spectrum is generally divided into seven regions, in order of decreasing wavelength and increasing energy and frequency. The common designations are: radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma rays.

radio waves - Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Radio waves have frequencies as high as 300 gigahertz (GHz) to as low as 30 hertz

(Hz)

.

microwaves-. Microwave” frequencies are formally defined as those above 300 MHz (wavelengths less than 1 m), but informally we consider microwave frequencies as being above about 1 GHz.

visible light- Visible light falls in the range of the EM spectrum between infrared (IR) and ultraviolet (UV). It has frequencies of about 4 × 1014 to 8 × 1014 cycles per second, or hertz (Hz) and wavelengths of about 740 nanometers (nm) or 2.9 × 10−5 inches, to 380 nm (1.5 × 10−5 inches).

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