A 35 mm camera using a standard 50.0 mm lens is focused on a 1.80 m tall person who is standing 3.25 m from the lens. You now refocus the camera on a 15.0 cm tall flower that is 75.0 cm from the lens
(a) In refocusing, by how much did you move the lens? Did you move it toward the film or away from it? (b) What is the height of the flower's image on the film?
(a) 2.79 mm, away from the film, (b) 10.7 mm
Physics & Space Science
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Fill in the blank(s) with the appropriate word(s).
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Human output of carbon dioxide is small compared to natural output by volcanoes, for example
a. True b. False Indicate whether the statement is true or false
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For all transparent material substances, the index of refraction
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