1.

A light is incident on a glass slab. The angle of incidence is 54 while the angle of refraction is 30 . What will be the speed of light in the glass slab?

A. v = 1.85 X 10<sup>8</sup>m/s
B. v = 2.85 X 10<sup>8</sup>m/s
C. v = 3.85 X 10<sup>8</sup>m/s
D. v = 4.85 X 10<sup>8</sup>m/s
Answer» B. v = 2.85 X 10<sup>8</sup>m/s


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