Polarization

Suppose that in the preceding problem the light incident on \(P_{1}\) is unpolarized. At the determined value of \(\theta\), what fraction of the incident light passes through the combination?

Text Transcription:

P_1

theta

Physics 105 Week 1 Notes By Lauren Faris Chapter 1: Units, Uncertainty, and Vectors Become familiar with Appendix E of the Physics textbook. Numbers, Values, Units Units are a necessary! SI system, or International System of Units, is also called the Metric System or MKS System. o Length meter m o Time second s o Mass kilogram kg An equation must remain dimensionally consistent. MKS is the starting point for dimensions: o “M” = meters = length = [L] o “K” = kilograms = mass = [M] o “S” = seconds = time = [T] Velocity: [v] = [L]/[T] Acceleration: [a]= [v]/[T]=[L]/[T]^2 Force: [F]=[M][a]=[M][L]/[T]^2 *One of the most important equations* Estimated uncertainty is written with a +- sign. Percent (fractional) uncertainty is the ration of the uncertainty to the measured value, multiplies by 100%. Calculators will not give the correct number of sig figs.