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Physics · May / June 2016 · Paper 12 · Question 21

5054Refraction of light

Light passes from air into a block of glass, as shown. Which expression is equal to the refractive index of glass?

  1. A\frac{\sin w}{\sin y}
  2. B\frac{\sin w}{\sin z}
  3. C\frac{\sin y}{\sin w}
  4. D\frac{\sin z}{\sin x}

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Correct answer: A. \frac{\sin w}{\sin y}

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