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Question
The refractive index of water with respect to air is `4/3`. The refractive index of air with respect to water will be:
(a) 1.75
(b) 0.50
(c) 0.75
(d) 0.25
Solution
0.75
Explanation:
Refractive index of air with respect to water = `1/ "Refractive index of water with respect to air" `
Refractive index of air with respect to water = 3/4 = 0.75
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