The value of velocity of light in vaccum or free space is :
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Answer:The speed of light in free space (that is, in a vacuum) is a constant that has been measured to considerable accuracy. To nine significant figures, it is 299,792,458 meters per second (2.99792458 x 10 8 m/s).
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Answer:
the velocity of light or any other electromagnetic waves in vacuum or free space where the optical density has been considered Unity or 1is
3* 10^8 m/s
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