Question 1 · 1 mark · Foundation · Practical · Diagnostic
Interactive practical
Measuring refractive index
Rotate a ray box around a semicircular block, read refraction angles on the protractor, then find the refractive index from a graph of sin i against sin r and check it against the critical angle.
Open interactive simulationPractice: Measuring refractive index
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Question 2 · 3 marks · Standard · Practical · Practical method