Example 3. Light enters from air to diamond with
refractive index 2.42. What is the speed of light in
diamond? Given, speed of light in air is 3 x 10" ms
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Answer:
1.24× 10 to the power 8
Explanation:
Refractive index is = speed of light in air /speed of light in medium
2.24 = 3× 10 to the power 8 /speed of light in medium
Speed of light in medium = 3×10 to the power 8/ 2.42
= 1.24× 10 to the power 8
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