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O-LevelPhysicsLight5054/11 · May/June 2024 · Q241 Mark

A ray of light strikes the surface of a glass block at an angle of incidence of 45°. The refractive index of the glass is 1.8. What is the angle of refraction inside the block?

A23°

B25°

C45°

D81°

✓ Correct answer

A: 23°

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About this question

Topic: Light, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2024 Paper 1 Variant 1, question 24.

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