A thin film of water sits on top of a flat piece of glass
A thin film of water sits on top of a flat piece of glass; and light is incident from below (see the subsequent figure). If the angle of incidence is θ = 20°, what is the angle of refraction of the final outgoing ray?
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a thin film of water sits on top of a flat piece of glass and light is incident from below see the subsequent figure if
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