A coin at the bottom of a trough containing water to a depth of 15 cm appears to be 3.75 cm raised above from the bottom. Calculate the refractive index of water.
Explanation
Using the formula for apparent depth, we can calculate the refractive index of water. The apparent depth is 3.75 cm, and the real depth is 15 cm. The refractive index of water is given by n = real depth / apparent depth = 15 / 3.75 = 4. However, this is incorrect as the refractive index of water is less than 4. The correct answer is 1.33, which is the refractive index of water.
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