Questão de Cálculo

What is the definition of the second in the International System of Units?

The second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between two hyperfine levels of the ground state of the cesium ^{133} ext{Cs} atom.

The second is the fraction rac{1}{31,556,925.9747} of the tropical year for January 0, 1900, at 12:00 hours of ephemeris time.

A
Only the first statement is correct.
B
Only the second statement is correct.
C
Both statements are correct.
D
Neither statement is correct.

Ainda não há comentários para esta questão.

Seja o primeiro a comentar!

Aulas em vídeo Em breve

00:00

Tópicos Relacionados