Sub-topic 1
2024 · National Quarterfinal
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Physical quantity riddle: refractive index
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Sub-topic 2
2024 · National Preliminary
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Absolute refractive index from the speed of light in a medium
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Sub-topic 3
2018 · National Preliminary
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Critical angle for total internal reflection
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Sub-topic 4
2021 · National One-Eighth
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Snell's law: sine of the angle of refraction
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Sub-topic 5
2024 · National One-Eighth
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Riddle: refractive index
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Sub-topic 6
2026 · National Preliminary
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Dispersion of white light upon reflection versus refraction at a water surface (true/false)
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Sub-topic 7
2013 · National Preliminary
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Total internal reflection: medium direction, and light behaviour below/above the critical angle (true/false)
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Sub-topic 8
2016 · National One-Eighth
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Incident, reflected and refracted rays lie in the same plane (true/false)
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Sub-topic 9
2016 · National Preliminary
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Real depth of a submerged object from its apparent depth and the medium's refractive index
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Sub-topic 10
2016 · National Preliminary
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Apparent depth of a submerged coin from real depth and refractive index
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Sub-topic 11
2016 · National Preliminary
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Refractive index of a glass block from its thickness and an object's apparent depth
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Sub-topic 12
2017 · National Quarterfinal
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Problem of the day: minimum-deviation prism angle and refractive index from a given deviation
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Sub-topic 13
2022 · National Preliminary
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Finding real depth from apparent depth using a refractive index found from a reference measurement
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