Answers

2016-03-09T20:45:18+05:30
Refractive index of glass with respect to air = speed of light in air\speed of light in glass

Therefore,
1.5 = 3x10^8\speed of light in glass

speed of light in glass = 1.5\ 3x10^8
                                    = 1\ 2x10^8 m/s
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