123Cex2verDsol

# 123Cex2verDsol - Name_Student ID Score last first I...

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Name ___________________________________ Student ID ____________ Score_______ last first Physics 123C, Spring 09, Version D Exam 2, page 1 θ 2 θ in out θ 2 θ I. Unpolarized light of intensity 43 . 0 W/m 2 passes through three ideal polarizers whose transmission axes are each rotated by a common angle θ with respect to the previous one, as shown. 1. (4 pts) Which choice best represents the direction along which the magnetic field vector oscillates in the outgoing light? A. B. C. D. E. None of these is correct. 2. (5 pts) If the intensity of outgoing light is 14 . 5 W/m 2 , which choice best represents the angle θ ? 25 . 0 ° 33 . 5 ° 22 . 5 ° 40 . 4 ° 28 . 0 ° A B C D E II. A diverging lens has magnitude of focal length |f| = 20 . 0 cm. A bright object is placed 44 . 0 cm to the left of this lens, as shown. Each grid square is 4 cm × 4 cm 3. (4 pts) Which choice best represents the image distance produced by this lens? +13 . 8 cm 13 . 8 cm 36 . 7 cm 6 . 88 cm +36 . 7 cm A B C D E 90 ° 2 θ

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Name ___________________________________ Student ID ____________ Score_______ last first Physics 123C, Spring 09, Version D Exam 2, page 2 II. Continued. The figure is reproduced here: Each grid square is 4 cm × 4 cm 4. (5 pts) Which choice best represents a correct ray diagram showing three principal rays following correct paths (as you might draw for a ray diagram)? A. B. C. D. E. None of these has three correct rays.
Name ___________________________________ Student ID ____________ Score_______ last first Physics 123C, Spring 09, Version D Exam 2, page 3 × × x II. (Cont.) A converging lens has magnitude of focal length |f| = 20 . 0 cm. A bright object is placed 8 .

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123Cex2verDsol - Name_Student ID Score last first I...

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