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Calculate the speed of light in a medium whose critical angle is 60°

Calculate the speed of light in a medium whose critical angle is 60°

Grade:11

1 Answers

Arun
25750 Points
6 years ago
The formula for critical angle is arcsin(r/i). 
So for 60 degrees, the value of refractive index comes to be 1.15 
Therefore the speed of light in the substance is 2.60E+8 m/s

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