• Waves are characterized by their repetitive motion.
  • A wave with a short wavelength has a high frequency because more waves pass a given point in a certain amount of time.
  • Wavelength and frequency are therefore inversely related.
  • As the wavelength of a wave increases, its frequency decreases.
  • For the relationship to hold mathematically, if the speed of light is used in m/s, the wavelength must be in meters and the frequency in Hertz.
  • For example, the color orange within the visible light spectrum has a wavelength of about 620 nm.
  • What is the frequency of orange light?
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