(a) The refractive index of glass is \( 1.5 \). What is the speed of light in glass? (Speed of l...

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(a) The refractive index of glass is \( 1.5 \). What is the speed of light in glass? (Speed of light in vacuum is \( 3.0 \times 10^{8} \mathrm{~m} \mathrm{~s}^{-1} \) ) (b) is the speed of light in glass independent of the color of light? If not, which of the two colors red and violet travels slower in a glass prism?
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