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

A rough, white surface reflects all wavelengths of light, but it scatters the photons in random directions, so all you see is the whiteness of the object.

A smooth surface reflects light consistently in the same direction, the angle of approach, so you see the image of the surrounding environment.

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