write two difference between speed of lights and speed of sound .
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Light waves can travel in vacuum, whereas sound waves cannot travel in vacuum. The speed of light waves in air is 3 x m/s, while that of sound waves in air is 330 m/s at 0. This means that the speed of light is a million times greater than the speed the speed of sound in air.
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Light waves can travel in vacuum, whereas sound waves cannot travel in vacuum. The speed of light waves in air is 3 x m/s, while that of sound waves in air is 330 m/s at 0. This means that the speed of light is a million times greater than the speed the speed of sound in air
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