The critical angle for a denser-rarer interface is 45°. The speed of light in the rarer medium is 3 × 10⁸ m s⁻¹. The speed in the denser medium is:
Physics · Geometrical optics · Laws of Refraction & Total Internal Reflection
The critical angle for a denser-rarer interface is 45°. The speed of light in the rarer medium is 3 × 10⁸ m s⁻¹. The speed in the denser medium is:
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