Question

The soldiers are issued infrared goggles to help them see in the dark. what does infrared mean in this sentence ? A. outside visible spectrum B. creating light by radiating heat C. emitting light by creating water vapor D. producing light by adding electrons to a glowing material

Answer 1

Answer: The answer will be A. Outside visible spectrum.

Explanation: having a wavelength just greater than that of the red end of the visible light spectrum but less than that of microwaves. Infrared radiation has a wavelength from about 800 mm to 1 mm and is emitted particularly by heated objects. Hepe this helps x3