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Ray tracing and the mirror equation

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Shaving/makeup mirrors typically have one flat and one concave (magnifying) surface. You find that you can project a magnified image of a light bulb onto the wall of your bathroom if you hold the mirror 1.5 m from the bulb and 3.5 m from the wall.

(a) What is the magnification of the image?
(b) Is the image erect or inverted?
(c) What is the focal length of the mirror?

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Solution Summary

With formulas and explanations, the tracing and mirror equation problems are solved.

Solution Preview

a) recall the formula for magnification from a mirror:

M = h_i / h_o = - d_i / d_o

where
h_i and h_o are the heights of the ...

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