The speed of light on passing through pure water is 2.2 x 10%m/s.
On dissolving salt in water, speed of light through the salt solution
becomes 2 x 108 m/s. The refractive index of salt solution with
respect to pure water is:
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The speed of light in water and glass is 2.2×10
8
m/s and 2×10
8
m/s ,respectively. What is the refractive index of glass w.r.t water?
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