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Help with angle of refraction question watch

1. Ignore the working out I have done as it is incorrect but can anyone help me with answering this question? Thankyou

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2. first of all, write out what you're given.
1) it goes from oil to water.
2)the i = 44, r = ?
3) the n of oil is 1.47 and the n of water is 1,33
4) write out an equation. in this case it's n1sini = n2sinr

so whats what... oil is 1.47 and i is 44 degrees; because it goes from oil to water,
its 1.47Sin(44) = 1.33Sin(?)
Sin(?)= 1.47Sin(44)
1.33 = sin(inverse) 0.7677803042 which = 50.1

(also the n of air isn't important as the light is travailing through oil)

P.S physics is hard but like maths it becomes easy if you work away at it

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Updated: November 1, 2015
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