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aChordate
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Homework Statement
An object is in front of a converging lens with a focal length of 11.0 cm. The lens
produces a real image located 25.0 cm from the lens. If the lens is replaced by a new lens
(in the same position) that has a focal length of 32.0 cm, what is the image distance of the
new lens? Is the image real or virtual?
Homework Equations
Thin lens equation
1/f=1/d0+1/di
The Attempt at a Solution
lens 1:
1/+11*10-2=1/dO+1/+25.0*10-2
dO=0.196m
lens2:
1/+32.0*10-2=1/0.196m+1/di
di=-0.506m
Virtual image