IYPT 2018, Задачи на турнира — Задача 2. Colour of Powders

Problems for the 31st IYPT 2018

Release note and epigraph

Released by the IOC on July 13th, 2017

The originator of a new concept finds, as a rule, that it is much more difficult to find out why other people do not understand him, than it was to discover the new truth.

Hermann von Helmholtz

Условие

If a coloured material is ground to a powder, in some cases the resulting powder may have a different colour to that of the original material. Investigate how the degree of grinding affects the apparent colour of the powder.

Решение

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Оригинал в Архива: 2018.pdf