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The refraction index of glass is 1.5. Fi...

The refraction index of glass is 1.5. Find the speed of light in glass.

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Here, refractive index `n = 1.5`, speed of light in vacuum `c = 3 xx 10^(8) m//s`, speed of light in glass, `v = ?`
From `n = c/v, v = c/n = (3 xx 10^(8) m//s)/(1.5) = 2 xx 10^(8) m//s`.
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