Which one of the following types of waves are used in a night vision apparatus ?
Which one of the following types of waves are used in a night vision apparatus ?
The correct answer is Option 3: Infra-red waves. Night vision apparatus, also known as night vision goggles or devices, are designed to enhance visibility in low-light conditions or complete darkness. These devices allow individuals to see in the dark by detecting and amplifying available light sources, including light from the infrared (IR) spectrum.