Question

Describe the different regions of electromagnatic spectrum

Answer 1

Electromagnetic spectrum:

The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation.

There are 7 regions in the electromagnetic spectrum and they are:

▪ gamma rays :
Gamma rays have the lowest wavelength but the highest frequency in the electromagnetic spectrum.

▪ x-rays :
x-rays make up X-radiation, a form of electromagnetic radiation. Most X-rays have a wavelength ranging from 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz and energies in the range 100 eV to 100 keV.

▪ ultraviolet :
Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.

▪ visible light :
Visible light is the only electromagnetic radiation that is visible to the human eye.

▪ infrared :
An advantage of infrared is it can be used to detect people, which it is used by the police to find criminals from a helicopter when they are trying to escape.

▪ microwaves :
Microwaves are a form of electromagnetic radiation with wavelengths ranging from about one meter to one millimeter; with frequencies between 300 MHz and 300 GHz.

▪ radio waves :
Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light.


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