PCS 181 Study Guide - Wilkinson Microwave Anisotropy Probe, 30 Foot Fall, Cosmic Background Explorer

• School: Ryerson University
• Department: Physics
• Course: PCS 181
• Professor: Margaret Buckby

Document Summary

Starlight the star"s temperature, chemical composition, motion, pressure, magnetic fields etc. Light: mutually perpendicular oscillating electric and magnetic fields. Light: moves in wavelike pattern at a speed of c= 3 x 108 m/s. Wavelength, : distance between peaks of wave. 1 nanometer = 1nm = 1 m = 1 x 10-9m = 10-9m. Red = 700nm = 700 x 10-9 = 7 x 10-7m. Violet = 400nm = 400x10-9 = 4 x 10-7m. Photons: bundles of energy light as a particle. = number of wave peaks passing a given point each second. = hz. f = c/ fred = 3 x 108 m/s / 700 x 10-9 m. Sequence of colored filters at eyepiece end of telecope. T= 0. 0029 m k / 550 x 10-9m. Note that the surface temperature of the sun is ~ 5800k. Ered = (6. 625 x 10-34 j s) (4. 3 x 1014 cycles/s) Note: shorter wavelengths higher frequencies and energies.