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1)A 21.0 cm tall cup is placed 77.3 cm away from the center of a concave...

1)A 21.0 cm tall cup is placed 77.3 cm away from the center of a concave mirror with a focal length of 47.0 cm . What is the height of the cup's mirror image in cm?

2)Gwen sees her image in a reflective, spherical tree ornament that has a diameter of 8.7 cm.8.7 cm. The image is upright and is located 1.2 cm1.2 cm behind the surface of the ornament. How far LL from the ornament is Gwen located cm?

3)A lens is formed from a plastic material that has an index of refraction of 1.59. If the radius of curvature of one surface is 1.15 m and the radius of curvature of the other surface is 1.75 m, use the lensmaker's equation to calculate the magnitude of the focal length |f| and the power |P| of the lens.

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