Data Collection

Table 1: From Air (index of refraction = 1.00)

Medium	Angle of Incidence	Index of Refraction of Medium	Angle of Refraction
Water	30 degrees
Glass	30 degrees

Table 2: From Air (index of refraction = 1.00)

Medium	Angle of Incidence	Angle of Refraction	Index of Refraction (show work on next page)
Mystery A, Trial 1
Mystery A, Trial 2
Mystery A, Trial 3
Mystery B, Trial 1
Mystery B, Trial 2
Mystery B, Trial 3

Table 1 Analysis:

Use Snell's law (n1sin1 = n2sin2) to verify that the angles of refraction that you recorded in Table 1 are indeed correct. Show that the left side of the equation equals the right side of the equation, within the limits of experimental error. Show your work.

Table 2 Analysis:

Use Snell's Law to determine the indices of refraction for Mystery A and Mystery B. There should be six calculations.

	Trial 1	Trial 2	Trial 3	Average:
Mystery A Calculations:
Mystery B Calculations:

Questions (Complete Sentences)

1. Determine the average of the three trials for each material.
   1. Mystery A = __________
   2. Mystery B = __________

In which material would light travel faster, Mystery A or Mystery B? Explain.

1. As the index of refraction for the second medium is increased, what effect does this have on the angle of refraction?

1. Write a conclusion for this lab.