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thibui Group Title

A light ray travels from water (n = 1.33) to crown glass (n = 1.52) and bends at a 30º angle to the normal. What is the incident angle for the light from the water? Answer with three significant digits. **I tried Snell's Law and no matter what I do, I didn't get the correct answer, help me :(

  • 3 months ago
  • 3 months ago

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  1. theEric Group Title
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    It seems like you have all the information for Snell's Law!|dw:1397869962800:dw| \(n_w\sin\theta_w=n_g\sin\theta_g\) \(\implies \theta_w=\arcsin\left(\dfrac{n_g\sin\theta_g}{n_w}\right)\)

    • 3 months ago
  2. theEric Group Title
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    |dw:1397870541728:dw| That doesn't seem too bad :) What are you getting?

    • 3 months ago
  3. theEric Group Title
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    Good luck! If you're using a calculator, make sure you have it set to degrees!

    • 3 months ago
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