Задача id12522

A pile is driven into the bottom of a reservoir with a depth of a = 2.0 m, which protrudes out of the water at b = 0.75 m. Find the length of the shadow from the pile at the bottom of the reservoir if the height of the Sun above the horizon at the moment is f = 45 degrees. The refractive index for water is n = 1.33.

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