One of the world\'s largest aquaria Is the Monterey Bay Aquarium. The viewing wa

Question

One of the world's largest aquaria Is the Monterey Bay Aquarium. The viewing wall b made of acrylic and H 0.33 m thick, and the tank holds 1.2 million gallons of water. A ray of light Is directed Into the plastic from air at an angle of a = 25+.The indices of refraction for air, acrylic, and seawater are listed on the figure. Calculate the angle that the ray will make when It enters the plastic, (Express your answer to three significant figures.) Calculate the angle that the ray will make when It enters the seawater. (Express your answer to three significant figures.)

Explanation / Answer

using snell's law

part a )

n1*sintheta1 = n2 * sintheta2

n1 =1

theta = 25

n2 = 1.5

theta2 = sin^-1(1*sin25/1.5)

theta2 = 16.36 degree

part b )

n2*sintheta2 = n3*sintheta3

n3 = 1.37

theta3 = sin^-1(n2*sintheta2/n3)

theta3 = 17.97 degree

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