Physics
posted by Melanie .
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.

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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