USAAAO 2018, I кръг — Задача 3

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

What is the peak wavelength in Angstroms (A˚\mathrm{\AA}) of electromagnetic radiation emitted by a star at a temperature of 10,000 K, assuming a blackbody spectrum? (Wien's constant σw≈2.9∗107 A˚∗K\sigma_w \approx 2.9*10^7\ \mathrm{\AA*K})

A. 290 A˚\mathrm{\AA}
B. 2,900 A˚\mathrm{\AA}
C. 5,800 A˚\mathrm{\AA}
D. 29,000 A˚\mathrm{\AA}
E. 58,000 A˚\mathrm{\AA}

Решение


Оригинал в Архива: usaaao-first-round-exam-2018.pdf · официални решения: usaaao_first_round_2018.pdf