May/June 2026 Paper 21

2026 · 40 questions · 40 parts · 40 marks

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19Refraction Total Internal ReflectionHard1 mark
A ray of light travels in air. The ray strikes a glass block. The angle between the ray and the block is . The speed of light in air is m / s. The speed of light in glass is m / s. What is the angle of refraction in the glass block?