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

[ Return to question menu ]













Answer 1
decreases

INCORRECT
By comparing the changes in size of the image, it can be seen that the size doesn't decrease.
  return to top























Answer 2
Increases

CORRECT

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

INCORRECT

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

[Physics Lessons]  [Physics Review]  [Physics Links]

This web site is designed and maintained by Science Joy Wagon and may not be reproduced or redistributed without written permission from Science Joy Wagon.
Contact with comments.