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    Question

    Night photography and photopraphy in mist and fog are

    possible using –
    A ultra-violet radiation Correct Answer Incorrect Answer
    B infra-red radiation Correct Answer Incorrect Answer
    C microwave radiation Correct Answer Incorrect Answer
    D gamma radiation Correct Answer Incorrect Answer

    Solution

    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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