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What is the speed of light in rock salt if the critical angle, when light passes...

What is the speed of light in rock salt if the critical angle, when light passes from rock salt into air, is 40.5 degrees?

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Answer #1

The concept used in this question is the definition of refractive index and it's relation with the critical angle , after applying this concept i deduced the value of speed of light in rock salt .

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