IYPT 2003, Задачи на турнира — Задача 4. Bright spots

16th IYPT (2003)

Заглавие в източника

Source: Problems for the 16th IYPT (fyrisskolan.uppsala.se, Oct. 6, 2002)
Selected at the Preparatory Seminar at Wik Castle on Oct. 4—6, 2002
Exemplary solutions for 2003 →

Условие

Blow a soap bubble and allow it to rest an a liquid surface or a glass plate. When illuminated by sunlight, bright spots can be observed on the bubble. Investigate and explain the phenomenon.

Решение

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Оригинал в Архива: 2003.txt