IYPT 2003, Задачи на турнира — Задача 3. Transparent film

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

If you cover printed text with a piece of transparent polyethylene film you can still easily read it. As you gradually lift up the film, the text becomes increasingly blurred and may even disappear. Study the properties of the film. On what parameters of the film is the phenomenon based?

Решение

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Оригинал в Архива: 2003.txt