eli5: What is the difference between a mirror and a white object?

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I mean, what does a white object do? Absorbs nothing, reflects all light back.

What does a mirror do? Absorbs nothing, reflects all light back.

Having the same characteristics, how does a mirror reflect an image and a white object, a white texture?

In: Physics

18 Answers

Anonymous 0 Comments

Both a mirror and a white surface reflect most of the light.

But a white surface is rough if you zoom in, and the light rays that hit it reflects in different random directions,
while a mirror is very smooth and correctly reflects light based on the angle of incidence.

[Very helpful image!](https://imgur.com/a/gEqqWOw)

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