The speed of light in vacuum is 3 x 10' metre per second
glass is 2 x 10" metre per second The refractive index of
glass is?
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Answer:
just divide the speed of light in vacuum by the speed of light in glass
Explanation:
it gives
3×10⁸/2×10⁸
=1.5
so the refractive index of glass is 1.5
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