why the speed of light is fastest than sound?
jagdeepsingh4076:
because sound needs a medium to travel ... sound is depend on how is medium... light can travel in vacuum also....
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In everyday use and in kinematics, the speed of an object is the magnitude of its velocity; it is thus a scalar quantity.
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light can travel in vacuum + it has short wavelength (10^-6 m). Hence it passed undirected.
Sound's wavelength is 10^-2 to 10m
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