diff --git a/_psets/9.md b/_psets/9.md new file mode 100644 index 0000000000000000000000000000000000000000..902fdf490bea10167edbc565405f64ff9d9ed07f --- /dev/null +++ b/_psets/9.md @@ -0,0 +1,64 @@ +--- +title: Problem Set 9 +--- + +## (9.6) + +{:.question} +Solve the periodically forced Lorentz model for the dielectric constant as a function of frequency, +and plot the real and imaginary parts. + + +## (12.1) + +### (a) + +{:.question} +How many watts of power are contained in the light from a 1000 lumen video projector? + +### (b) + +{:.question} +What spatial resolution is needed for the printing of a page in a book to match the eye’s limit? + + +## (12.2) + +### (a) + +{:.question} +What is the peak wavelength for black-body radiation from a person? From the cosmic background +radiation at 2.74 K? + +### (b) + +{:.question} +Approximately how hot is a material if it is “red-hot”? + +### (c) + +{:.question} +Estimate the total power thermally radiated by a person. + + +## (12.3) + +### (a) + +{:.question} +Find a thickness and an orientation for a birefringent material that rotates a linearly polarized +wave by $$90^\circ$$. What is that thickness for calcite with visible light ($$\lambda \approx 600 +\si{nm}$$)? + +### (b) + +{:.question} +Find a thickness and an orientation that converts linearly polarized light to circularly polarized +light, and evaluate the thickness for calcite. + +### (c) + +{:.question} +Consider two linear polarizers oriented along the same direction, and a birefringent material +placed between them. What is the transmitted intensity as a function of the orientation of the +birefringent material relative to the axis of the polarizers?