A energia de um fóton vermelho cujo comprimento de onda é 725nm é:
Dado: 6,63 x 10^-34 js ; c=3x10^8 m/s

Respostas:

A) 3,37 x 10^-19 J

B) 2,74 x 10^-19 J

C) 2,74J

D) 4,14 x 10^-14J
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