Optical Black Box. Disk. RusPhO Final 2021
In this problem of the Final of RusPhO-2020, we need to measure the parameters of the cavity hidden inside the transparent disk. You can see the inscription “Final RusPhO 2020” on the box: the problem was originally developed for the 2020 olympiad, which did not take place due to the COVID pandemic. Оптический серый ящик …
