USAAAO 2018, I кръг — Задача 2
USAAAO National Astronomy Olympiad First Round 02/12/2018-02/16/2018 Time Limit: 75 Minutes · 12 февруари 2018 г. · 1 т.
Внимание: Бележка към темата
The solutions document provides answer letters for all 30 problems and brief explanations for some problems.
Условие
Which of the following has the longest wavelength?
A. UV
B. Optical
C. Radio
D. X-rays
E. Microwave
Решение
Answer: C
Оригинал в Архива: usaaao-first-round-exam-2018.pdf · официални решения: usaaao_first_round_2018.pdf