USAAAO 2015, Пробен кръг — Задача 1

USAAAO Practice Round 2015

Бележка

This round consists of 20 multiple-choice problems to be completed in 50 minutes. You may only use a scientific calculator and a table of constants during the test.

Условие

Light from distant galaxies appears to be:

a. Shifted to longer wavelengths

b. Shifted to shorter wavelengths

c. Increased in energy

d. Increased in intensity

e. Completely polarized

Отговори

Решение

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Оригинал в Архива: 2015-practice-round-exam.pdf · официални решения: 2015-practice-round-solutions.pdf