General Science • PhysicsMedium
Which type of electromagnetic radiation is commonly utilized in television remote controls for transmitting signals?
A. Ultraviolet rays
B. X-rays
C. Infrared waves✓ Correct Answer
D. Microwaves
💡 Solution & Explanation
Infrared waves are electromagnetic radiation with wavelengths longer than visible light, making them ideal for short-range wireless communication such as television remote controls and night-vision equipment. Ultraviolet rays carry higher energy and cause skin tanning, whereas microwaves are used in radar and satellite communication. Infrared diodes emit coded pulses recognized by sensor detectors on appliances.
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