picture of prism separating colors of lightPhysics Quest - Refraction

1.  What is refraction?  Make a sketch showing the refraction of a ray light as it travels from one medium to another.

2.  How does a pencil in a beaker of water illustrate refraction?

3.  What causes refraction?

4.  What is the index of refraction?  What is the equation for the index of refraction?

    a.  The index of refraction for glass is 1.5.  Calculate the speed of light in glass.

    b.  The index of refraction for diamond is 2.4.  Calculate the speed of light in diamond.

    c.  The speed of light in an unknown substance is 1.5 x 108 m/s, what is it's index of refraction?

5.  What are the indices of refraction for the various layers of the eye?

Do the online assignment on refraction.  Write out your answers on your own paper.

6.  Check out this physlet on refraction, answer the questions.  

7.  What is Snell's Law?

8.  What is Total Internal Reflection?  Check out this physlet, answer the questions.

8.  Use Snell's Law to solve practice problems in the online assignment.  Write out your answers on your own paper.

Modified 30 April 2008
by Lori Andersen.