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CH. 35 Light

CH. 35 Light. Kennesaw State University Physics 2212. Light. Energy of a photon: h = Planck’s constant = 6.63 x 10 -34 J.s Light has dual nature (wave/particle). Light Particle Nature. http://www.sciencemag.org/content/338/6114/1576.full (Example) Photoelectric Effect:.

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CH. 35 Light

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  1. CH. 35 Light Kennesaw State University Physics 2212

  2. Light • Energy of a photon: h = Planck’s constant = 6.63 x 10-34 J.s • Light has dual nature (wave/particle)

  3. Light Particle Nature http://www.sciencemag.org/content/338/6114/1576.full (Example) Photoelectric Effect:

  4. Huygens’s Principle “Any wave front can be taken as a series of point sources for the wave propagation”

  5. Other Characteristics of Light • Light is quantized like charge • Frequency and wavelength can change and relate via equation: • Light has speed (“c”) of 3.00 x 108 m/s

  6. Electromagnetic Spectrum

  7. Speed of Light • In a vacuum: • In a medium: Where n = index of refraction Example: nvacuum=1 nair=1.01

  8. Snell’s Law • Snell’s Law of Refraction Equation:

  9. Snell’s Law Critical Angle

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