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Chaning refractive index?
A ray is incident at 30 and travels in the medium, if the refractive index of the medium is given by n(y) = 1.5 - 0.25(y) , for what value of y will the ray become horizontal ?
1 Answer
- VamanLv 78 years agoFavorite Answer
sin i/sin r= refractive index. We know i 30 degrees and horizontal will be at 90 degrees. sin r =1
Now write the equation
sin 30 = 1 * ( 1.5- 0.25 y)
Solve for y
y = (1.5 - sin30)/0,25= 4(1.5-sin30)
Solve it you will get the answer.
