IYPT 1990, Задачи на турнира — Задача 15. Light in a tube
Problems for the 3rd International Young Physicists’ Tournament
Critical edition
Olympiets Youth Center, Moscow, Soviet Union; June 7‒14, 1990 [1]
Critical edition: translated, restored, and commented text [2]
FINAL DRAFT. — Please do not re-publish. Suggestions and criticism welcome
Translated, edited and commented by Ilya Martchenko. The original edition’s historical notes, sources and acknowledgments are retained with problem 1.
Епиграф
Victories do not attract him.
For him growth means: profound defeat
at the hands of ever greater adversaries.
R. M. Rilke [3]
Условие
Look through a glass tube at a light (tube diameter is ca. 5 mm, length is ca. 25 cm.) Explain the origin of the observed circles.
Решение
Внимание: Непълно решение
В архива няма официално решение на тази задача.
Оригинал в Архива: 1990.pdf