Why do you think remote controls for TV's VCRs and stereos use infrared light rather than ultraviolet light?

Infrared light is used in remote controls because it can pass through objects (like walls) and has a longer wavelength that is better suited for longer distances, making it more practical for controlling devices from a distance. Ultraviolet light, on the other hand, is more easily absorbed by objects and poses potential health risks to human eyes and skin, making it less suitable for consumer devices.