Linked from

The 26 pages that link to Snell's law, each with the reason it gives.

• Refractive indexRelated: It predicts how a ray changes direction at an interface between materials.

• RefractionRelated: It quantifies the bending that occurs when a wave crosses an interface.

• Christiaan HuygensRelated: Huygens derived refraction from differing speeds of wave propagation.

• OpticsRelated: It predicts the bending of light at optical interfaces.

• Atmospheric refractionRelated: It describes the directional change at each boundary in a layered-atmosphere model.

• Numerical apertureRelated: It governs how rays bend at the interfaces surrounding an optical system.

• Total internal reflectionRelated: It predicts the refracted angle and yields the critical angle when refraction reaches 90 degrees.

• Geometrical opticsRelated: It gives the ray direction after light crosses between media.

• P wavesRelated: It predicts the bending of P-wave paths across Earth layers.

• Fermat's principleBroader topic: Stationary travel time across an interface produces this relation between ray angles.

• PrismRelated: It predicts the ray angles at each prism surface.

• Ray tracingRelated: It gives the direction of a transmitted ray at a boundary.

• Augustin-Jean FresnelRelated: Fresnel’s wave theory supplied a physical account of refraction described by this law.

• Fresnel equationsRelated: It determines the transmitted angle used in the Fresnel amplitude formulas.

• Corpuscular theory of lightRelated: The law quantified refraction that Newton sought to derive from corpuscle-boundary forces.

• Dispersion (optics)Related: Combined with wavelength-dependent refractive index, it predicts each color’s refracted angle.

• Ground-penetrating radarRelated: Refraction can alter radar paths when waves cross subsurface interfaces.

• Seismic refractionRelated: It governs the bending of seismic rays at subsurface boundaries.

• Brewster angleRelated: Combined with the reflection geometry, it yields the tangent relation for the Brewster angle.

• Angle of incidenceRelated: It uses the incidence angle to calculate a transmitted ray’s direction.

• Wave vectorRelated: Conservation of the wave vector component parallel to an interface yields refraction angles.

• Anti-reflective coatingRelated: Refraction at the coating interfaces changes the light’s path and phase.

• Brachistochrone curveRelated: A changing refractive index can make an optical ray trace the same shape as the fastest descent.

• Ibn SahlCompared with: It states refraction in a form that resembles Ibn Sahl's earlier geometric rule.

• Negative-index metamaterialRelated: With a negative index, the transmitted ray bends to the opposite side of the normal.

• PentaprismRelated: It governs how rays enter and leave the pentaprism's glass.