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Unformatted text preview: 77777 77777 PHYSICS DEPARTMENT PHY 2054 Final Exam April 24, 2010 Name (print, last first): Signature: On my honor, I have neither given nor received unauthorized aid on this examination. YOUR TEST NUMBER IS THE 5DIGIT NUMBER AT THE TOP OF EACH PAGE. (1) Code your test number on your answer sheet (use lines 7680 on the answer sheet for the 5digit number) . Code your name on your answer sheet and UFID number on your answer sheet. (2) Print your name on this sheet and sign it also. (3) Do all scratch work anywhere on this exam that you like. Circle your answers on the test form. At the end of the test, this exam printout is to be turned in. No credit will be given without both answer sheet and printout. (4) Blacken the circle of your intended answer completely, using a #2 pencil or blue or black ink . (5) The answers are rounded off. Choose the closest to exact. There is no penalty for guessing. (6) Hand in the answer sheet separately. Constants, Prefixes, and Units g = 9 . 80 m/s 2 e = 1 . 6 10 19 C micro, = 10 6 G = 6 . 67 10 11 Nm 2 /kg 2 m e = 9 . 11 10 31 kg nano, n = 10 9 k e = 8 . 99 10 9 Nm 2 /C 2 m p = m n = 1 . 67 10 27 kg pico, p = 10 12 = 8 . 85 10 12 C 2 /N/m 2 = 4 10 7 Tm/A c = 3 10 8 m/s 1 eV = 1 . 6 10 19 J 1 mi = 1.609 km 1. Two converging lenses, each with a focal length of 10 cm, are separated by distance L as shown in the figure. The image of an upright object placed 20 cm in front of the first lens appears 20 cm behind the second lens and is also upright. Find L [in cm]. O L (1) 40 (2) 80 (3) 20 (4) 0 (5) 2. Two converging lenses, each with a focal length of 20 cm, are separated by distance L as shown in the figure. The image of an upright object placed 40 cm in front of the first lens appears 40 cm behind the second lens and is also upright. Find L [in cm]. O L (1) 80 (2) 160 (3) 40 (4) 0 (5) 3. Two converging lenses, each with a focal length of 30 cm, are separated by distance L as shown in the figure. The image of an upright object placed 60 cm in front of the first lens appears 60 cm behind the second lens and is also upright. Find L [in cm]. O L (1) 120 (2) 240 (3) 60 (4) 0 (5) 4. An upright object is placed 10 cm in front of a spherical mirror. The image, also upright, is four times larger than the object. Find the radius of curvature of the mirror surface in cm. (1) 27 (2) 40 (3) 67 (4) 15 (5) 52 5. An upright object is placed 15 cm in front of a spherical mirror. The image, also upright, is four times larger than the object. Find the radius of curvature of the mirror surface in cm. (1) 40 (2) 27 (3) 67 (4) 15 (5) 52 77777 77777 6. An upright object is placed 25 cm in front of a spherical mirror. The image, also upright, is four times larger than the object. Find the radius of curvature of the mirror surface in cm....
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 Spring '08
 Avery
 Physics

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