Need help with my lab. I am using Snell\'s law to try and find the index of refr

Question

Need help with my lab. I am using Snell's law to try and find the index of refraction of two elements, Water and then vegetable cooking oil. I measured the Angle of incidence for water which was 45 degrees, and the angle of refraction which was 32 degrees. How do I find the Index of refraction for water?

Then I did the same thing with vegetable cooking oil. My data was:

Angle of incidence: 57 degrees

Angle of refraction: 35 degrees

What would the index of refraction then be for the oil?

Thanks! I will definitely rate the best answer with the clearest explanation!

Explanation / Answer

According to the snell law we know that
the refractive index n = Sin(i)/Sin(r) where i is the angle of incidence and r is the angle of refraction
So for water we know that i = 45 and r = 32
n = Sin45/Sin32 = 1.334
Similarly for the oil
i = 57 and r = 35
For oil n = Sin57/Sin35 = 1.462
nwater = 1.334
noil = 1.462

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