IOM 2021, Блиц — Задача 14

The Blitz-contest of IOM-2021

Условие

A narrow parallel beam of light falls from the air on a transparent ball of radius $R = 20$ cm with a refractive index $n = 2$ in the direction of one of the diameters. The distance from the center of the ball to a point where the rays are focused is equal to … (give your number in cm, rounded to integer)

Отговори

Решение

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Оригинал в Архива: iom-2021-blitz-tasks-eng.pdf · официални решения: iom-2021-blitz-answers-eng.pdf