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April 20, 2014

Homework Help: physics

Posted by wally on Monday, March 18, 2013 at 4:15pm.

A 7·cm tall candle is placed 125·cm from a lens with a focal length of +25·cm. Note: enter the absolute value of your answers for all distances and heights ... use the signs to determine the type and orientation of the images.

a) How far from the lens will the image be?
b) How tall will the image be?


Now, imagine that the candle is moved closer, so that it is only 15·cm from the lens.

d) How far from the lens will the image be?
e) How tall will the image be?

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