Refraction by Lenses Video Tutorial

The Refraction by Lenses Video Tutorial explains the difference between a converging and diverging lens in terms of their shape and the manner in which they refract light.  Numerous examples, illustrations, and animations assist in the explanations. The video lesson answers the following questions:

  1. How can a lens be described?
  2. In what manner does a converging and a diverging lens refract light?

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