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Physics, 12.11.2020 18:40 fishercc

A light ray of λ = 480 nm enters at an angle of incidence of 36.4 from air into a block of plastic. Its angle of refraction is 23.0. speed of the light inside the plastic?

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A light ray of λ = 480 nm enters at an angle of incidence of 36.4 from air into a block of plastic....
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