What type of electromagnetic wave is used in tv remote control devices?
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They most use infa red but they use wireless for the more recent technology.
In ordinary remote controls for devices such as televisions & DVD players, infra red light is used (naked to the human eye).
A few remotes use radio frequencies. Garage door openers. Car entry. Most home system units and some car entry use infrared light. Still electromagnetic.
infrared radiation is used in tv remotes
Usually infra red, but I have seen some that use ultrasound.
The type of waves used in tv remotes are IR waves, otherwise known as infrared waves.
Although not true of every system, the vast majority of remotes for TVs and other home AV equipment use infrared radiation to transmit information. Infrared radiation is very …similar to visible light, but of a shorter wavelength, so our eyes can't see it. it is however of a higher wavelength than radio waves on the electromagnetic spectrum, illustrated at the link
Radio waves. A bit higher in frequency than "radio", but not much.
Which type of wave from the electromagnetic spectrum are used in heat lamps and heat sensing devices?
Infrared waves from the electromagnetic spectrum are used in heatlamps and heat sensing devices.
Remote controls use both infrared and radio frequency technologies. Your typical TV remote uses infrared and your typical car remote uses RF.
UV waves are caused by the electromagnetic spectrum that imitatesthe sun. It is used in heat lamps and sensing devices.