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physics magnification high school physics?

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Author Topic: physics magnification high school physics?  (Read 215 times)
Edgar_Chavez
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« on: June 20, 2011, 01:27:27 AM »
Use the thin lens equation to calculate the image distance of the image formed by a 2 cm high object that is located 6 cm from a convex (converging) lens having a focal length of 4 cm.


What will be the magnification of this image?
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u_n__o
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« Reply #1 on: June 20, 2011, 06:37:44 PM »
1/f = 1/p + 1/q
p = 0.06m
f = 0.04m
therefore q = p*f/(p-f) = 0.12m
Magnification = -q/p = -2.  The sigificance of the minus sign is that the image is inverted.
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