Quiz4-Sol-SSI09

Quiz4-Sol-SSI09 - Physics 2C Summer Session I Quiz #4 1. A...

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Physics 2C Summer Session I Quiz #4 1. A plane wave of randomly polarized light is incident on a stack 3 linear polarizers. The polarization axes are all rotated through an angle of &= 6 relative to the polarization of the light incident upon it. The intensity of the light as it emerges from the stack relative to the incident light, S=S o ; is given by A) 0 B) : 281 C) : 375 D) : 422 E) : 650 From the law of Malus S=S o = 1 2 & cos 2 ( &= 6) ± 2 = : 281 ! B 2. Consider an incident light ray that is propagating in the plane of the page with an angle of incidence of 65 & to the &rst of two mirrors as shown in the &gure for problem 2. Determine the angle of re±ection from the second mirror, ± M 2 : Problem 2 A) 55 & B) 60 & C) 65 & D) 35 ± E) 25 & The initial acute angle in the triangle is ² = 90 & & 65 & = 25 & : Hence the second acute angle is ³ = 180 & & 120 & & ² = 35 & : This means that ± M 2 = 90 & & 35 & = 55 & ! A 3. An alarm in your dorm room goes o/ one morning with an annoying 600 Hz buzz, and your roommate throws it out the window. Your dorm room is on the sixth ±oor 20 m above the ground. Assuming that the outside temperature
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Quiz4-Sol-SSI09 - Physics 2C Summer Session I Quiz #4 1. A...

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