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  1. Properties of waves. A wave (Figure 2) is a periodic perturbation from an undisturbed or rest state that is transmitted in space. The maximum deviation from this undisturbed state is called the amplitude of the wave, and is a measure of the intensity of the perturbation; the top of the wave is called a crest and the lowest state, a trough.

  2. Frequency and Wavelength. As the radiation propagates at a given frequency, it has an associated wavelength— that is, the distance between successive crests or successive troughs. Wavelengths are generally given in meters (or some decimal fraction of a meter) or Angstroms (Å, 10 -10 meter).

  3. Define amplitude, frequency, period, wavelength, and velocity of a wave; Relate wave frequency, period, wavelength, and velocity; Solve problems involving wave properties

  4. PROPERTIES OF WAVES, INCLUDING LIGHT AND SOUND WORKED EXAMPLES 1 A loudspeaker makes sound waves with a frequency of 300 Hz. The waves have a wavelength of 1.13 m. Calculate the speed of the sound waves. x Waves hit a barrier at an angle of incidence i. The waves bounce off with the angle of incidence i equal to the angle of reflection r. The

  5. There are water waves, waves on strings, sound waves, (a) x^. earthquake waves, radio waves, light waves, radar waves, X-rays, etc. In the present unit we shall discuss the most basic properties common to all kinds of waves. We shall then use the next several units to explore.

  6. Electromagnetic radiation has properties of both waves and particles. What we detect depends on the method we use to study it. The beautiful colors that appear in a soap film or in the dispersion of light from a diamond are best described as waves. The light that strikes a solar cell to produce an electric current is best described as a particle.

  7. The Electromagnetic Spectrum Properties. Gamma rays have wavelengths about the size of an atomic nucleus or smaller. Infrared light has wavelengths about the size of the point on a needle. Microwaves have wavelengths about the size of a butterfly to the size of humans.

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