USAAAO 2015, Пробен кръг — Задача 14

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

When taking the spectrum of a galaxy with redshift z=1, the H-alpha line ($\lambda$=656 nm) appears at what wavelength?

a. 32.6 nm

b. 326 nm

c. 656 nm

d. 1312 nm

e. 6563 nm

Отговори

Решение

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