When ultraviolet light falls on certain dyes ,visible light is emitted.why this is not happen when infrared light falls on the dyes?
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Answered by
3
Answer:
Explanation:
it does happen in some cases.
But in order for that to happen, the dye molecule must absorb two infrared photons within a few nanoseconds of each other. This happens when using an intense short pulse light source such as a Q-switched laser.
Answered by
1
Answer:
BECAUSE THEY ARE WEAK
Explanation:
ULTRAVIOLET LIGHT BEING STRONGER AND HARMFUL TO NAKED HUMAN EYES EMITS VISIBLE LIGHTS WHEREAS INFRARED BEING VERY WEAK(COMPARED TO ULTRAVIOLET RAYS)DO NOT PERFORM THE SAME ACTION
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