EM Waves
EM waves or electromagnetic waves are waves that are produced by accelerating electrons. These waves are a combination of electric and magnetic fields.
Radio waves
Radio waves have the longest wavelength in the electromagnetic spectrum. They are used to transmit sound and picture information over long distances.
Wavelength: 10³ m
Frequency: 10⁴ Hz
Microwaves
Microwaves have smaller wavelength than radio waves. They are used in satellite communications, TV transmission, cooking, and radar.
Wavelength: 10⁻² m
Frequency: 10⁸ Hz
Infrared
Infrared is beyond the red end of the visible light. It is emitted by all objects.
Wavelength: 10⁻⁵ m
Frequency: 10¹² Hz
Visible Light
Visible light is the light that the human eye can see. When it passes through a prism, it is separated into ROYGBIV (red, orange, yellow, green, blue, indigo, and violet.
Wavelength: 10⁻⁶ m
Frequency: N/A
Ultraviolet Rays
Ultraviolet rays is beyond the violet end of the visible light. They are widely used for industrial processes.
Wavelength: 10⁻⁸ m
Frequency: 10¹⁵ Hz
X-rays
X-rays are next to ultraviolet rays. They are produced using an x-ray tube and are emitted when fast moving electrons hit a metal target.
Wavelength: 10⁻¹⁰ m
Frequency: 10¹⁸ Hz
Gamma Rays
Gamma rays are the last one in the electromagnetic spectrum. They are the shortest in wavelength, highest in frequency, and highest in energy, which means they are dangerous. They are emitted by stars and radioactive substances.
Wavelength: 10⁻¹² m
Frequency: 10²⁰ Hz
