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Unformatted text preview: Scientifc Notation milli , written m , means 103 . So 1/1000 oF a meter is a millimeter, or 1mm micro , written μ , means 106 . So the wavelength oF light is 0.5 micrometers = 0.5μm mega , written M , means 10 6 . So a 100 MHz ¡M station is generating waves at 10 8 Hz nano , written n , means 109 . So the wavelength oF yellow light is 500 nanometers = 500 nm 650nm 500nm 400nm 0.65μm 0.5μm 0.4μm Waves  the Electromagnetic Spectrum Waves can be either Periodic or Aperiodic ! Periodic wave Aperiodic wave ! Periodic wave space Wavelength For periodic waves, we can identify a wave length , ! , by measuring the distance between unique points ! Periodic wave ! Periodic wave space Period and Frequency For periodic waves, we can identify a period , T, by measuring the time taken for a wavelength ! to pass a given point  The frequency , ! , is the inverse of the period i.e. ! = 1/ " and is the number of times per second that an oscillation occurs at any ¡xed point in space Wavelength, Frequency, and Velocity For periodic waves, we can identify a speed , v, by speed = distance/time speed = Wavelength/Period speed = Wavelength x frequency v = #! Wavelength, Frequency, and Velocity For periodic waves, we can identify a speed , v, by Speed = distance/time Speed = Wavelength/Period Speed = Wavelength x frequency v = #!...
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 Spring '07
 MARTINGOLDMAN
 Light, incident rays

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