Physics Review Question

Unit: Geometric Optics
Year: 1997 Question#: 91
Question: As the object is moved from point C toward point F, the size of its image

(1 ) decreases
(2 ) increases
(3 ) remains the same

What is this question really asking?

Explanation by: Clayton B

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Answer 1

By comparing the changes in size of the image, it can be seen that the size doesn't decrease.
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Answer 2


Refer back to answer 1 to compare the diagrams. In the second diagram, it's clear that the image is larger when the object approaches the focal point from point C. return to top

Answer 3
Remains the same


You should eliminate this answer first. The size of the image constantly changes. return to top

What's this question really asking?

Does the image become larger when it is placed closer to the focal point? return to top

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