What is the Speed of Light in Snell's Law?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
While Snell's Law doesn't directly state the speed of light, it's intrinsically related. The refractive index (n) euals c/v, where c is the speed of light in vacuum (approximately 3 × 10⁸ m/s) and v is the speed in the medium. Therefore, Snell's Law can be rewritten as: (c/v₁) sin θ₁ = (c/v₂) sin θ₂, which simplifies to v₁ sin θ₂ = v₂ sin θ₁. This shows that refraction occurs because light travels at different speeds in different materials.
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