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Which of the following
materials absorbs light energy
during the day and re-emits
the light when it is dark?
(a) Photomechanical
b) Piezoelectric
c) Photophoresent pigment
d) Photochromic


Sagot :

Final answer:

Photochromic materials absorb and re-emit light energy based on exposure to light.


Explanation:

Photochromic materials absorb light energy during the day and re-emit it when it is dark. They undergo a reversible change in their chemical structure when exposed to light, causing them to change color. This process is commonly seen in sunglasses that darken in sunlight and fade in darkness.


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