OpticsTakeHomeTest - between successive maxima is 2 cm....

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Name ___________________ Optics Test Due: April 22, 2007 You may not discuss any question or any variation of any question on this test with another student. You may work on any problem in your book with another student. You must sign the pledge at the bottom attesting to this. PLEDGE ___________________________ 1. An object is placed 15 cm in front of a lens. The image that forms has a magnification of -2.0. (a) Where does the image form? (b) Is the image real or virtual? Upright or inverted? (c) What is the focal length of the mirror?(d) Sketch the ray diagram. 2. Light passes from a medium of index of refraction, 1.4, into a medium of index 1.0. If the angle entered the second medium, at an angle of 15˚ from the normal, at what angle from the normal does it exit? (b) Sketch the problem.(C) At what angle of incidence would total internal reflection occur? 3. Light is incident on two small slits that are separated by a distance d = 0.005 cm. On a screen 1.5 m away, an interference pattern occurs in which the spacing
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Unformatted text preview: between successive maxima is 2 cm. What is the wavelength of the light? 4. A thin layer of oil ( n = 1.32) spills onto the surface of a nearby lake. It produces maximum reflection for orange light (580.0 nm wavelength in air). Assuming the maximum occurs in the first order, determine the thickness of the oil slick. 5. A thin double convex lens of focal length 15.0 cm is located at the origin of the x-axis, as shown below. An 8.00 cm tall object is placed 45.0 cm to the left of the lens. A concave mirror with focal length of + 15.0 cm is placed at x = + 30.0 cm. On the figure below, indicate the position of the image formed by the lens, and draw a diagram to show the formation of the image by a mirror. Clearly show the principle rays. (note: the image formed by the lens acts as the object that will be reflected by the mirror.) Show the calculation of the image point as well....
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This note was uploaded on 04/30/2008 for the course PHYS 181 taught by Professor Visscher during the Spring '07 term at Arizona.

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