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  2. Optical path length - Wikipedia

    en.wikipedia.org/wiki/Optical_path_length

    An electromagnetic wave propagating along a path C has the phase shift over C as if it was propagating a path in a vacuum, length of which, is equal to the optical path length of C. Thus, if a wave is traveling through several different media, then the optical path length of each medium can be added to find the total optical path length. The ...

  3. Lloyd's mirror - Wikipedia

    en.wikipedia.org/wiki/Lloyd's_mirror

    Lloyd's mirror is an optics experiment that was first described in 1834 by Humphrey Lloyd in the Transactions of the Royal Irish Academy. [1] Its original goal was to provide further evidence for the wave nature of light, beyond those provided by Thomas Young and Augustin-Jean Fresnel.

  4. Snell's law - Wikipedia

    en.wikipedia.org/wiki/Snell's_law

    Refraction of light at the interface between two media of different refractive indices, with n 2 > n 1.Since the velocity is lower in the second medium (v 2 < v 1), the angle of refraction θ 2 is less than the angle of incidence θ 1; that is, the ray in the higher-index medium is closer to the normal.

  5. Plane of incidence - Wikipedia

    en.wikipedia.org/wiki/Plane_of_incidence

    The plane of incidence is defined by the incoming radiation's propagation vector and the normal vector of the surface. In describing reflection and refraction in optics, the plane of incidence (also called the incidence plane or the meridional plane [citation needed]) is the plane which contains the surface normal and the propagation vector of the incoming radiation. [1]

  6. List of equations in wave theory - Wikipedia

    en.wikipedia.org/wiki/List_of_equations_in_wave...

    The phase velocity is the rate at which the phase of the wave propagates in space. The group velocity is the rate at which the wave envelope, i.e. the changes in amplitude, propagates. The wave envelope is the profile of the wave amplitudes; all transverse displacements are bound by the envelope profile.

  7. College Football Playoff schedule: Bowl game times, dates and ...

    www.aol.com/college-football-playoff-schedule...

    The first round of the new 12-team College Football Playoff format is set to ignite the field on Friday, Dec. 20 with a primetime game. This marks the beginning of an intense postseason, where ...

  8. When does 'No Good Deed' come out? How to watch Ray ... - AOL

    www.aol.com/does-no-good-deed-come-200044366.html

    All eight half-hour episodes of "No Good Deed" will be available to stream on Netflix at 12 a.m. PT / 3 a.m. ET on Thursday, Dec. 12. 'No Good Deed' cast (L to R) Lisa Kudrow as Lydia, Abbi ...

  9. Zeeman effect - Wikipedia

    en.wikipedia.org/wiki/Zeeman_effect

    The spectral lines of mercury vapor lamp at wavelength 546.1 nm, showing anomalous Zeeman effect. (A) Without magnetic field. (B) With magnetic field, spectral lines split as transverse Zeeman effect.