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The red light is used in …

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The red light is used in photographic room ?why?

    • Posted by Saima Jain 6 years, 11 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Boyar Debbarma 6 years, 11 months ago

    Because the photo paper is basically light sensitive and even it can destroy the picture. But it is less sensitive to red colour, either u can use green or blue-green as well.

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