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The refraction in a water tank makes apparent depth the same throughout.

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in Physics – Class 12 by (135k points)
The refraction in a water tank makes apparent depth the same throughout.

(a) True

(b) False

This question was addressed to me in my homework.

The doubt is from Ray Optics in chapter Ray Optics and Optical Instruments of Physics – Class 12

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The correct choice is (b) False

For explanation I would say: No, this statement is false. Apparent depth is maximum for that part of the bottom of the tank which is observed normally. Apparent depth decreases with increasing obliquity. Therefore, the refraction in a water tank does not make apparent depth the same throughout.

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