Asked by Lena

How do I find index of refraction if I have the incident angle and refraction angle?
Answered by bobpursley
Use snell's law. You have to have both indexes of refraction.
Answered by Lena
what do you mean by both indexes of refection? I put a lazer beam through water.
Answered by bobpursley
On side is air, one side is water.
Answered by bobpursley
take a look at Snell's Law

N1 SinTheta1=N2 SinTheta2 right?
Answered by Lena
and i`m trying to find n2 right?
Answered by bobpursley
Yes, if N2 is index of water.
Answered by Lena
Thanks so much :)
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