## College Physics (7th Edition)

a) We will see that the rays converge below the x-axis making the new image inverted (therefore real) and reduced in size because the new image is smaller than the original object size. b) By the spherical mirror equation, $\frac{1}{do}+\frac{1}{di}=\frac{1}{f}$ Thus, $\frac{1}{100}+\frac{1}{di}=\frac{1}{40}$ So, the image is 66.7 cm in front of the mirror. c) Magnification = $|\frac{66.7}{100}|=0.667$