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How Are Light Waves And Sound Waves Different?

Light and sound are both forms of energy. Both can be described by wave functions and both travel at the speed of light in a vacuum.

The difference between light and sound is that light travels in straight lines while sound travels in waves. Light can be reflected, refracted, and polarized but it cannot be changed into an actual wave like sound can.

Sound waves are mechanical waves that propagate in a medium (usually air) as alternating compressions and rarefactions of that medium. Sound waves have frequencies measured in hertz (Hz), which is the number of vibrations per second.

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Last modified: September 19, 2022

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