Finger prints on a piece of paper may be detected by sprinkling fluorescent

powder on the paper and then looking it into [MP PET/PMT 1988]

Mercury light

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Sunlight

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Infrared light

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Ultraviolet light

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Solution

The correct option is D
Ultraviolet light

Ultraviolet light

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Finger prints on a piece of paper may be detected by sprinkling fluorescent

powder on the paper and then looking it into [MP PET/PMT 1988]

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