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28-01-2024
Chemistry

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Light enters from air to glass with a refractive index of 1.5. What is the speed of light in the glass?
a) 3 x 10⁸ m/s
b) 2 x 10⁸ m/s
c) 1.5 x 10⁸ m/s
d) 2.25 x 10⁸ m/s

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