TroubledNextGen
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What will the angle of refraction be for a ray of light passing from air into sodium chloride crystal if the angle of incidence is 60.0 degrees? The index of the of refraction of sodium chloride is 1.53
A) 13 Deg
B) 22 Deg
C) 34 Deg
D)42 Deg
E) 48 Deg

Respuesta :

YoungManAlex

uhhhhhhhhhhhhhhhhh i believe its 34

i = angle of incidence in air = 60 deg

r = angle of refraction in sodium chloride crystal = ?

n₁ = index of refraction of air = 1

n₂ = index of refraction of sodium chloride = 1.53

Using Snell's law

n₁ Sini = n₂ Sinr

1 Sin60 = (1.53) Sinr

0.866 =  (1.53) Sinr

Sinr = 0.866/1.53

Sinr = 0.566

r = Sin⁻¹(0.566)

r = 34  deg

Hence the correct choice is

C) 34 Deg

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