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Q. |
Night photography and photopraphy in mist and fog are possible using – |
A. | ultra-violet radiation |
B. | infra-red radiation |
C. | microwave radiation |
D. | gamma radiation |
Answer» B. infra-red radiation | |
Explanation: Infrared is used in night vision equipment when there is insufficient visible light to see. Night vision devices operate through a process involving the conversion of ambient light photons into electrons which are then amplified by a chemical and electrical process and then converted back into visible light. |
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