OPTI 200 Lecture Notes - Lecture 2: Nanometre, Photon
30 Aug 2018
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Document Summary
Em waves are characterized as sine (sinusoidal) waves. Wavelength is the distance between any repetitive part of the wave. Frequency is the number of times per second oscillation occurs (hertz hz) Velocity is the speed at which the wave travels. Frequency times wavelength equals the speed of light c = (c; speed of light, v; velocity. Equations for the homework: problems 2 and 3 c = frequency (hertz) x speed of wavelength (mi/s), problems 4 and 5 = d = c x t. Energy = h x v (planck"s constant x frequency) energy per photon. 186, miles/second is the speed of light or 3x10^8. Spectrum is a plot (graph) of the amount of light (energy or power) as a function of wavelength or frequency. The sped of sound is much slower than light.
