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Are sound waves light waves

Updated: 9/15/2023
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13y ago

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No, sound waves are not light waves. The two are completely different.

Sound waves are longitudinal mechanical waves, while light waves are transverse electromagnetic waves, and sound requires a medium through which to travel, but light does not.

A brief outline of key differences between light waves and sound waves:

  • Sound requires a medium (gas, liquid, air) to travel through. Light does not.
  • Light can also be treated as a particle, sound cannot.
  • How you calculate the energy of a sound, or light wave is also different. Light energy is related to the frequency (or wavelength, these two values are closely related) - "E=hf". The energy of a sound wave is related to it's amplitude (|a|2)and frequency.
  • The speed of sound is relative to the speed of the observer, while the speed of light is constant, regardless of the speed of the observer.
  • Sound is a pressure wave, a region of higher and lower densities in a material, moving through the material. Light is an oscillation in the strength of electrical and magnetic fields moving through space.
  • They are different types of waves, sound is a compression or longitudinal wave, light is a transverse wave.
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Q: Are sound waves light waves
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