Optics & Waves
Intermediate

Snell's Law

Refraction of light between two media.

Formula

n1sin⁡θ1=n2sin⁡θ2n_1\sin\theta_1 = n_2\sin\theta_2

Variables

nRefractive index
\thetaAngle

Did You Know?

Snell's law bends light at boundaries and is why a straw looks broken where it enters a glass of water.

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