A beaker of vegetable oil contains a beam of light that is aimed at the surface at an angle of 34°, as shown. If the index of refraction of the oil is 1.47, what is the angle of reflection?

22°
34°
55°
56°

Question

A beaker of vegetable oil contains a beam of light that is aimed at the surface at an angle of 34°, as shown. If the index of refraction of the oil is 1.47, what is the angle of reflection?

22°
 34°
 55°
 56°

justjm · Answer

Wait so is it something like this?

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jennylove · Answer

yes, i believe so

justjm · Answer

So you would use Snell's law

set theta 1 as 34 and n1 and 1.47, and n2 is the one for air (we will have to assume) so it's 1.00. Then find theta 2 using algebra

jennylove · Answer

i got 55 , is that correct?

justjm · Answer

I think so too

jennylove · Answer

awesome, thank you. if you could help with one last question?