Question

Which example best illustrates that light behaves like particles?

Light bends as it strikes a window.
Light bounces off a white cement sidewalk.
Light travels in space at a speed of about 3.0 x 108 m/s.
Light increases in speed as it moves through matter.

Answers

Answered by GPT-5 mini
Light bounces off a white cement sidewalk.

Reason: reflection (light "bouncing") is best pictured as photons hitting and scattering from the surface, a particle-like behavior. Phenomena such as bending (refraction) or interference/diffraction point to wave behavior, and the constant vacuum speed doesn't distinguish the two.
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