Quiz05b-s - Quiz 5b Name: Date: Phys224 Spring 2010 Dr. P....

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Unformatted text preview: Quiz 5b Name: Date: Phys224 Spring 2010 Dr. P. Hanlet Concept (3 points each) 1. A typical diverging lens has the shape: (a) convex-convex (b) convex-concave (c) concave-convex (d) concave-concave 2. A concave mirror with a radius of R =20 cm creates an image at infinity. The object was placed: (a) 40 cm in front of the mirror (b) 20 cm in front of the mirror (c) 10 cm in front of the mirror (d) at infinity in front of the mirror (e) at infinity behind the mirror 1 Problem (10 pts) Show your work!!! If I can read it, I will give you partial credit!!! Correct answers without work will NOT get full credit. 3. The following cartoon depicts a symmetric lens and an object in air. The lens has an index of refraction of 1.3. (a) Draw 3 rays to determine where the image will be located. c c f f O I 2 1 2 1 (b) Is the image real of virtual? Why? The image is virtual because it is formed at the point where extension rays converge, not where real rays converge....
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Quiz05b-s - Quiz 5b Name: Date: Phys224 Spring 2010 Dr. P....

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