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Refractive Index Calculator

Calculate refractive index: n = c / v. Speed of light c = 3×10⁸ m/s. Water: n=1.33; Glass: n≈1.5.

Input
Result
1.5000
Refractive index n

n = c / v = 3×10⁸ / 2.00e+8 = 1.5000

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