Exam-style question
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A light ray passes from air into glass at an angle of incidence of 30 degrees. If the refractive index of glass is 1.5, calculate the angle of refraction using Snell's law.
Model answer
What a good answer should say
- The angle of refraction is 19.5 degrees.
Explanation
Why this works
This question tests the application of Snell's law in refraction calculations. By using the formula n1 * sin(theta1) = n2 * sin(theta2), we substitute the known values to find the angle of refraction.
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