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A beam of light traveling through a liquid (of index of refraction n1 = 1.49) is incident on a surface at an angle of θ1 = 54° with respect to the normal to the surface. It passes into the second medium and refracts at an angle of θ2 = 65° with respect to the normal.

Randomized Variables

n1 = 1.49

θ1 = 54°

θ2 = 65°

(a) Write an equation for the index of refraction of the second material.

(b) What is the index of refraction of the second material?

(c) Numerically, what is the light's velocity in medium 1, in meters per second?

(d) Numerically, what is the light's velocity in medium 2, in meters per second?