Problem 1
A convex mirror has a radius of curvature of 3 m. If a 2 cm tall object is placed 1 m in
front of the mirror, how tall (in cm) will the image be, and what orientation will it have?
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Problem 2
An object of height 3 cm is placed a distance D = 20 cm to the left of a thin divergent
lens of focal distance 50 cm. What is the height of the image?
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Problem 3
Radio waves from a star, of wavelength 250 m, reach a radio telescope by two separate
paths as shown below. One is a direct path to the receiver, which is situated on the edge
of a cliff by the ocean. The second is by reflection off the water. The first minimum of
destructive interference occurs when the star is 25.0° above the horizon. Find the height
of the cliff. (Assume no phase change on reflection)