What is its velocity inside the block

Reference no: EM13273103

A beam of light in air is incident on the surface of a rectangular block of clear plastic (n = 1.38 ). If the velocity of the beam before it enters the plastic is 3.00 Â· 108 m/s, what is its velocity inside the block? Give your answer to 3 significant figures.

Reference no: EM13273103

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