The speed of light in air is 3 108 m/s. If the refractive index of g – McqOptions

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1.	The speed of light in air is 3 10⁸ m/s. If the refractive index of glass is 1.5, find the time taken by light to travel a distance of 10 cm in the glass.
A.	0.5 10<sup>-10</sup> s
B.	5 10<sup>-10</sup> s
C.	50 10<sup>-10</sup> s
D.	500 10<sup>-10</sup> s
Answer» C. 50 10<sup>-10</sup> s

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