123Aex2verBsol

# 123Aex2verBsol - Name_Student ID Score last first I...

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Name ___________________________________ Student ID ____________ Score_______ last first Physics 123A, Spring 09, Version B Exam 2, page 1 22 ° 44 ° in out 22 ° 44 ° 46 ° I. Unpolarized light of intensity 48 . 0 W/m 2 passes through three ideal polarizers whose transmission axes are each rotated by 22 ° with respect to the previous one, as shown. 1. (4 pts) Which choice best represents the direction along which the electric field vector oscillates in the outgoing light? A. B. C. D. E. None of these is correct. 2. (5 pts) Which choice best represents the intensity of the outgoing light? 8 . 87 W/m 2 17 . 7 W/m 2 20 . 6 W/m 2 35 . 5 W/m 2 38 . 3 W/m 2 A B C D E II. A diverging mirror has magnitude of focal length |f| = 10 cm. A bright object is placed 26 cm to the left of this mirror, as shown. Each grid square is 2 cm × 2 cm 3. (4 pts) Which choice best represents the image distance produced by this mirror? Cannot be +16 cm 16 cm +7 . 2 cm 7 . 2 cm determined A B C D E

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Name ___________________________________ Student ID ____________ Score_______ last first Physics 123A, Spring 09, Version B Exam 2, page 2 II. Continued. The figure is reproduced here: Each grid square is 2 cm × 2 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 is correct.
Name ___________________________________ Student ID ____________ Score_______ last first Physics 123A, Spring 09, Version B Exam 2, page 3 × × x II. (Cont.) A converging lens has magnitude of focal length |f| = 10 . 0 cm. A bright object is placed 4 . 00 cm to the left of this lens, as shown. When viewed

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123Aex2verBsol - Name_Student ID Score last first I...

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