Question

Repede va rog frumos

Answer 1

1) unghiul de incidenta = unghiul de reflexie

i = r = 60°

Normala = 90°

N - r = 90° - 60° = 30°

unghiul de refractie = 30°

2)

$\ \frac{ \sin(i) }{ \sin(R)} = \frac{n2}{n1} = n \: \\ \frac{ \sin(60) }{ \sin(30)} = \frac{ \frac{ \sqrt{3} }{2} }{ \frac{1}{2} } = \sqrt{3} = 1.73 \\ n = 1.73 \: \: = > sticla \: optica \: (indice \: de \: refractie \: mare)$