ASTRON C10 Lecture Notes - Lecture 3: Compton Scattering, Low Frequency, Spectroscopy
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ASTRON C10 Full Course Notes
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Red, orange, yellow, green, blue, indigo, violet. Electric field radiates in a circular manner. Electromagnetic wave has the theoretical speed of light. Visible light is a type of electromagnetic wave (radiation) Self-propagating, oscillating electric and magnetic fields perpendicular to each other and to the direction of motion. Number of times per second a crest passes a plane. Wavelength x frequency = v = c. The speed of light is independent of observer"s speed or source"s speed. All emr in a vacuum travels with same speed, c, regardless of wavelength. Energy given by planck"s constant (h) - small. Photons of higher energy have higher frequency and shorter wavelength ( ) Low frequency not enough energy to dislodge electrons from metal. Electron emits light with a slightly longer wavelength when a light was shined on it. If you don"t know where it is, won"t disappear (particle) If you don"t know (wave), it can interfere.
