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Infrared waves.
infrared waves.
infrared waves and infrared radiation both are same
Infrared signals are the electromagnetic radiations with wavelengths longer than the visible light but shorter than the radio waves. Infrared signals, with frequencies from 300 GHz to 400 THz (wavelengths from 1 mm to 770 nm) can be used for the short range communication. Infrared signals, having high frequencies can not penetrate into the walls.By Robert John Smith
The term "infrared" refers to electromagnetic waves, not to sound waves.
Many different types can be:sound waves in airelectrical waves in wireselectromagnetic waves (e.g. radio, microwave, infrared, visible light)etc.
Radio waves, microwaves, infrared and visible light can all be used for communication. Radio waves – are used to transmit television and radio programs. Microwaves – are used to transmit satellite television and for mobile phones. Infrared – is used to transmit information from remote controls.
Infrared waves. Infrared waves are also used in retina scans.
Infrared waves
Infrared waves.
infrared waves.
Radio waves
They most use infa red but they use wireless for the more recent technology.
infrared waves and infrared radiation both are same
Infrared signals are the electromagnetic radiations with wavelengths longer than the visible light but shorter than the radio waves. Infrared signals, with frequencies from 300 GHz to 400 THz (wavelengths from 1 mm to 770 nm) can be used for the short range communication. Infrared signals, having high frequencies can not penetrate into the walls.By Robert John Smith
The term "infrared" refers to electromagnetic waves, not to sound waves.
Infrared light is even used to heat food sometimes - special lamps that emit thermal infrared waves are often used in fast food restaurants! Shorter, near infrared waves are not hot at all - in fact you cannot even feel them. These shorter wavelengths are the onesused by your TV's remote control.