what is refraction???
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refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium
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In physics, refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction.
Formula
Snell's law
n_1 \sin \theta_1 = n_2 \sin \theta_2
n_1 = incident index
n_2 = refracted index
\theta_1 = incident angle
\theta_2 = refracted angle
Explanation:
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