General science UPPSC 2002 GS-I
Question

Which kind of light waves are used in remote control of television:

Answer & Solution

Answer: (Detailed Solution Below)

Option B: Infrared

Detailed Solution:

The correct answer is “Infrared”.

Most television remotes use infrared (IR) waves to transmit signals to the TV. IR waves are a type of electromagnetic radiation with a longer wavelength than visible light, making them invisible to the human eye.

This makes them a good choice for remote controls because they can be directed towards the TV without interfering with the viewing experience, and they are not easily blocked by walls or other objects in the room.

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