Lenses and Optics

This lab examines the difference between convex and concave lenses. A real image is produced and measured using a convex lens. The lens equation is introduced, as well as the magnification ratio.

Student Objectives

  • Identify the differences between concave and convex lenses
  • Use the lens equation to determine the focal length of a convex lens
  • Construct ray diagrams to accurately show how an image is formed
  • Demonstrate the difference between a near– and far–sighted eye, and show how each vision problem can be corrected
© NJ Getson 2011–2022