A concave mirror has a radius of curvature of 40 cm. An object is placed 70 cm from the mirror. Determine the nature, position, and relative size of the final image
Extended solution.
1. Draw a picture. A) Draw a principal axis. B) Draw a concave mirror, (you know it is concave because R is positive.) C) Locate the center of curvature. D) Locate the focal point.
2. R = 40 cm do = 70 cm Find di
4. di is positive so the image is real (that means inverted) 28 cm from mirror and is .4 x size of object
This page was last reviewed by mgosselin 10/09/2005