Question: (a) An object immersed in water appears closer to the surface than it actually is. What is the cause of this illusion? (b) Using Fig.

(a) An object immersed in water appears closer to the surface than it actually is. What is the cause of this illusion?
(b) Using Fig. 22.26, show that the apparent depth for small angles of refraction is d€™ = d/n, where n is the index of refraction of the water.

01 Air Water d d l 82

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