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  1. Night photography and photopraphy in mist and fog are possible using

  2. A.

     Ultra-violet radiation

    B.

     Infra-red radiation

    C.

     Microwave radiation

    D.

     Gamma radiation

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    Answer : Option B

    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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