PHYS 1750: SELECTED TOPICS in PHYSICS
LECTURE 37. Reflection and Refraction: Ray Tracing
24.1. | Ray paths | ||
24.2. | Reflection and Refraction | ||
1. | Reflection | ||
a. The plane of reflection | |||
b. Angle of reflection = angle of incidence | |||
2. | Refraction; conceptual | ||
3. | Ray reversal | ||
24.3. | Refraction | ||
1. | Index of refraction n = c/v | ||
2. | Snell's law: n1sinq1 = n2sinq2 | ||
24.4. | Total Internal Reflection | ||
1. | The critical angle: sin(qc) = n2 / n1 | ||
2. | Application: fiber optics | ||
24.5. | Dispersion | ||
1. | Index of refraction wavelength dependent | ||
2. | Usually n is higher at shorter wavelengths | ||
3. | Rainbows | ||
a. The primary rainbow | |||
b. The secondary rainbow | |||
c. Halos, Sundogs, and Mirages |