lecture 24

# lecture 24 - a convex mirror with a focal length of ‐ 0.5...

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Problem 1: Soup spoon physics.

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Problem 2: Only 9 mos. until Christmas! Start shopping now! After leaving some presents under the tree, Santa notices his imageina g p , g shiny, spherical Christmas ornament. The ornament is 8.50 cm in diameter and 1.10 m away from Santa. Curious to know the location and size of his image, Santa consults a book on physics. Knowing that Santa likes to “check it twice”, what values should he obtain, if his height is 1.75 m?
Problem 3: A concave mirror in an amusement park has a radius of curvature of 4.0 m. A child stands in front of the mirror so that she appears 2.5 times taller than her actual height. If her image is upright, how far is she standing from the mirror?

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Problem 4: An object with a height of 42 cm is placed 2.0 m in front of

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Unformatted text preview: a convex mirror with a focal length of ‐ 0.5 m. Where is the image g g located, and what is its height? Is it upright or inverted wrt the object? Problem 5: A concave mirror with a focal length of 36 cm produces an image whose distance from the mirror is one ‐ third the object distance. g j What are the object and image distances? Problem 6: A film of oil, with an index of refraction of 1.48 and a thickness of 1.50 cm, floats on a pool of water. A beam of light is , p g incident on the oil at an angle of 60 o to the vertical. Find the angle ( θ ) the light beam makes with the vertical as it passes into the water. How does your answer depend on the thickness of the oil film? 60 o air n = 1.00 oil n = 1.48 water n = 1.33...
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lecture 24 - a convex mirror with a focal length of ‐ 0.5...

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