Show that for Refraction through a medium the ratio of real depth to apparent depth is equal to the refractive index of the medium?
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We know that the refractive index of water to air is 4/3 . So,
n=4/3
which should be n = 4/3 = n2/n1 , but my book says,
4/3= real depth/apparent depth.
How have they put the “depths” in the formula and Why?
anw=real depthapparent depth=4/3
apparent depth=3/4 is the real depth.
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