The speed of light in air is 3×108 m s–1, whereas that of the speed of light in water is 2 ×108 m s–1. What is the refractive index of water with respect to air? *
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★The speed of light in air is 3×108 m s–1, whereas that of the speed of light in water is 2.26×108 m s–1. What is the refractive index of water with respect to air? 1. 0.75.
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