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Light Rays That Hit the Surface of a Block of Plexiglas

Question 104

Multiple Choice

Light rays that hit the surface of a block of Plexiglas are bent, or refracted, according to Snell's Law:
N1sin θ\theta 1 = n2sin θ\theta 2.
Find the angle of refraction θ\theta 2 of Plexiglas if its refraction index n2 = 1.51, the refraction index of air n1 = 1, and light enters the Plexiglas at an angle ?1 = 53°. Round your answer to 1 decimal place.
 Light rays that hit the surface of a block of Plexiglas are bent, or refracted, according to Snell's Law: N<sub>1</sub>sin  \theta <sub>1</sub> = n<sub>2</sub>sin  \theta <sub>2</sub>. Find the angle of refraction  \theta <sub>2 </sub>of Plexiglas if its refraction index n<sub>2</sub> = 1.51, the refraction index of air n<sub>1</sub> = 1, and light enters the Plexiglas at an angle ?<sub>1</sub> = 53°. Round your answer to 1 decimal place.    A)  56.9° B)  31.9° C)  58.1° D)  27.9°


A) 56.9°
B) 31.9°
C) 58.1°
D) 27.9°

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