2. A beam of light in air is incident on the surface of a rectangular block of clear plastic (n = 1.49). If the velocity
Posted: Thu Jul 07, 2022 2:06 pm
2. A beam of light in air is incident on the surface of a rectangular block of clear plastic (n = 1.49). If the velocity of the beam before it enters the plastic is 3.00E+8 m/s, what is its velocity inside the block? a. b. C. d. 3.00E+8 m/s 1.35E+8 m/s 2.01E+8 m/s 2.46E+8 m/s