Physics Review Question

Unit: Lens
Year: 1992 Question#: 94
Question: An object 0.080 meter high is placed 0.20 meter from a converging (convex) lens. If the distance of the image from the lens is 0.40 meter, the height of the image is

(1 ) 0.010 m
(2 ) 0.040 m
(3 ) 0.80 m
(4 ) 0.16 m

What is this question really asking?

Explanation by: Larissa B

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Answer 1
0.010 m

INCORRECT return to top

Answer 2
0.040 m

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Answer 3
0.080 m

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Answer 4
0.16 m


this formula can be found on the regents reference tables:

substituting in the object size: 080 m, the object distance: .2 m, and the image distance .4 m, we find the image size: 0.16 m
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What's this question really asking?

Use the image size ratio. return to top

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