Stefan student Ludwig Boltzmann extended the law to grey-body emissions in which year?
Answer and explanation
Correct answer: B. 1884
- Step 1: In 1884, the law was extended to apply to grey-body emissions by Stefan's student Ludwig Boltzmann and hence is known as Stefan–Boltzmann law. Answer: 1884. Why not the others: 1858 is the year of Stefan habilitation; 1923 is the year of Pregl Nobel Prize; 1866 is the year he became Director of the Physical Institute.
Practise more Culture, Arts, Science and People.
Free questions with an explanation for every one, and full timed Slovenian General Knowledge mock tests.
More Culture, Arts, Science and People questions
- Since which year BC has the area of Ljubljana Castle been settled continuously, according to archaeological surveys?
- In which year was a castle first mentioned under the German name Luegg, when the Patriarch of Aquileia built it in Gothic style?
- Which knight was lord of Predjama Castle in the 15th century and a renowned robber baron?
- In which year was the second castle built by the Purgstall family destroyed in an earthquake?
- In 1567, which baron was leased the castle by Archduke Charles of Austria?
- The Triple Bridge comprises how many bridges spanning the Ljubljanica River?