Which one of the following types of waves are used in a night vision apparatus ........

General Science (Easy) Physics

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Which one of the following types of waves are used in a night vision apparatus?

Radio waves

Microwaves

Infra-red waves

None of the above

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Explanation:

Infrared waves are used in the night vision apparatus such as night vision goggles.Hot objects, including human bodies, emit some heat in the form of infrared light. Night vision goggles using thermal imaging technology capture the infrared light being emitted as heat by objects in the field of view. Night vision can also be used for hunting and watching animals after dark.Hence option 3 is the correct answer.

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