Unit: Optics
Year: 1996 Question#: 93
Question: An image that is 1.0 x 10 -2 meters tall is formed on a screen behind a converging lens when an object 2.0 meters tall is placed 8.0 meters in front of the lens. What is the distance from the lens to the screen?
(1 ) 2.5 x 10 -3 m
(2 ) 2.5 x 10 -1 m
(3 ) 4.0 x 10 -2 m
(4 ) 4.0 x 10 -1 m
What is this question really asking?
Explanation by: SM
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Answer 1
2.5 x 10-3 m
INCORRECT
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Answer 2
2.5 x 10 -1 m
INCORRECT
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Answer 3
4.0 x 10-2 m
CORRECT
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4.0 x 10-1 m
INCORRECT
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What's this question really asking?
The height of the image divided by the height of the object is equal to the distance of the image divided by the distance of the object.
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