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Home Q & A Board Science-Related Homework Help Physics
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Chery Chery
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Posts: 3587
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7 years ago
A drawing is placed 40 cm in front of a thin lens.  If a virtual image forms at a distance of 50 cm from the lens, on the same side as the drawing, what is the focal length of the lens?
A) -45 cm
B) 75 cm
C) 90 cm
D) 200 cm
E) +45 cm
Textbook 
College Physics

College Physics


Edition: 1st
Authors:
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slicealemonslicealemon
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#1
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7 years ago
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Chery Author
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#2
7 years ago
You're right again!

Appreciate it
wrote...
#3
7 years ago
Let me know if there's anything else bothering you, in fact, add me as a friend
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