Reflection and Refraction

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What is reflection of light?
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Reflection is the bouncing back of light rays when they hit a reflective surface.
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What is refraction of light?
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Refraction is the bending of light as it passes from one medium to another.
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What is Snell's Law?
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Snell's Law relates the angles of incidence and refraction to the indices of refraction of the two media.
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What is total internal reflection?
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Total internal reflection occurs when the angle of incidence exceeds the critical angle, causing light to be completely reflected within a medium.
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What role do lenses play in refraction?
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Lenses use refraction to converge or diverge light rays, forming images.
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