Physics A-Level
sin C = 1/n
What sin C = 1/n means in Physics A-Level, as defined for OCR.
Definition of sin C = 1/n
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Reference: OCR
At the critical angle, n sin C = 1 × sin 90° = 1, giving sin C = 1/n where n is the refractive index of the denser medium relative to the less dense medium.
Topics that use sin C = 1/n
- Electromagnetic waves (OCR A-Level)
Related terms
- Critical angle
- Orders of magnitude across the spectrum
- Refraction
- Refraction in rectangular blocks
- Refractive index
- Shared wave behaviours and differing photon energies
- Spectrum ordering by wavelength and frequency
- Total internal reflection
Using sin C = 1/n in the exam
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