1. A woman looking in a makeup mirror sees her face at twice its actual size and right-side up. If
she is 28.0 cm from the mirror, what is its focal length?
2. An object placed 12 cm from a concave mirror produces a real image 8.0 cm from the mirror. If
the object is now moved to a new position 18.0 cm from the mirror, where is the new image
located as measured from the mirror?
3. A candle is 49.0 cm in front of a convex spherical mirror of radius of curvature 70.0 cm. What are
the image distance and the magnification, respectively?
4. Ron fills a beaker with glycerin (n = 1.473) to a depth of 5.0 cm. If he looks straight down
through the glycerin surface, he will perceive the liquid to be what apparent depth?
5. A container is filled with fluid 1 and the apparent depth of the fluid is 5 cm. The container is next
filled with fluid 2 and the apparent depth of this fluid is 4 cm. What is the ratio of the indices of
refraction of these fluids?
6. Two convex thin lenses with focal lengths 10.0 cm and 20.0 cm are aligned on a common axis,
running left to right, the 10-cm lens being on the left. A distance of 20.0 cm separates the lenses.
An object is located at a distance of 15.0 cm to the left of the 10-cm lens. Where will the final
image appear as measured from the 20-cm lens?