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?
a) recall the formula for magnification from a mirror:
M = h_i / h_o = - d_i / d_o
h_i and h_o are the heights of the ...
With formulas and exlanations, the problems are solved.