Question

Find the angle made by the light ray when it gets refracted from water to air. As shown in the diagram.

Answer 1

Answer

Given :   na=1.00            nw=1.33                θi=44.0o                sin44.0o=0.695

Using Snell's law of refraction,     na×sinθi=nw×sinθw

∴   1.00×0.695=1.33×sinθw                   ⟹θw=sin−1(0.522)=31.5o

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