quiz7

# quiz7 - Exam Name_ MULTIPLE CHOICE. Choose the one...

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Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A cameras zoom lens covers the focal length range from 38mm to 110 mm. You point the camera at a distant object and photograph it first at 50mm and then at 100mm. What's the ratio of the images on the two photos? A) 2.9 B) 4.0 C) 2.0 D) 1.5 E) 1.0 1) 2) A double slit system is used to measure the wavelength of light. The system has slit spacing d=15 micron and slit-to-screen distance L=2.2m. If the m=1 maximum in the interference pattern occurs 7.1cm from the screen center, what is the wavelength of the light? A) 375nm B) 400nm C) 425nm D) 450nm E) 475nm 2) 3) In an 8-slit system, how many minima lie between the zeroth-oder and first-order maxima? A) 1 B) 6 C) 7 D) 8 E) 9 3) 4) You are projecting 35mm slides onto a wall 2.6m from the projector whose single lens has focal length 12.0cm.

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## This note was uploaded on 01/28/2009 for the course PHYS 2c taught by Professor Wurthmeir during the Fall '05 term at UCSD.

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quiz7 - Exam Name_ MULTIPLE CHOICE. Choose the one...

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