Homework Help: Physics

Posted by Melanie on Tuesday, November 27, 2012 at 7:04am.

An object is placed 11 cm in front of a convex mirror of focal length 4 cm. Using the lens equation, find where the image will form and state whether it is a real or virtual image.

Physics - drwls, Tuesday, November 27, 2012 at 7:08am
Let x be the unknown distance of the image from the mirror.

Solve
1/11 + 1/x = 1/f = 1/4

x will be positive so the image will be real.

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