Please urgently help in drawing sin i vs. sin r graph Snell's Law?

Question

I have found the data of three values of sin i and sin r. I have to draw a graph from these points and find the slope or the refractive index. On drawing the graph its shape is coming as a half-parabola. Am I right? Is it not intended to come as a straight line?
Please help urgently!!!!
Tomorrow I have to submit this!! Help!!

Answer 1

I don't know how you're getting a "half parabola."



A refractive index will result in a sudden change at the boundary between materials (and a reflection away), then the water will continue on in a straight line.



Snell's Law describes the relationship between the angles and the velocities of the waves.



sinθ1 / V1 = sinθ2 / V2



So... I have no idea where your parabola is coming from. The link below leads to an online Java calculator which will show you exactly what your data should result in. So you can compare whatever values you have against what is correct, and hopefully determine where your mistake occurred.

Answer 2

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Answer 3

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