Exam-style question
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Using Snell's law, calculate the angle of refraction when light enters water from air at an angle of incidence of 30 degrees. The refractive index of air is approximately 1.00 and that of water is approximately 1.33.
Model answer
What a good answer should say
- The angle of refraction is approximately 22.0 degrees.
Explanation
Why this works
This question tests the application of Snell's law in a practical scenario. The calculation involves substituting the known values into Snell's law, demonstrating the relationship between angles and refractive indices.
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