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  2. Prism correction - Wikipedia

    en.wikipedia.org/wiki/Prism_correction

    Prentice's rule, named so after the optician Charles F. Prentice, is a formula used to determine the amount of induced prism in a lens: = where: P is the amount of prism correction (in prism dioptres) c is decentration (the distance between the pupil centre and the lens's optical centre, in millimetres)

  3. Cauchy's equation - Wikipedia

    en.wikipedia.org/wiki/Cauchy's_equation

    It deviates in the ultraviolet and infrared regions. In optics, Cauchy's transmission equation is an empirical relationship between the refractive index and wavelength of light for a particular transparent material. It is named for the mathematician Augustin-Louis Cauchy, who originally defined it in 1830 in his article "The refraction and ...

  4. List of equations in quantum mechanics - Wikipedia

    en.wikipedia.org/wiki/List_of_equations_in...

    Planck–Einstein equation and de Broglie wavelength relations. P = ( E/c, p) is the four-momentum, K = (ω/ c, k) is the four-wavevector, E = energy of particle. ω = 2π f is the angular frequency and frequency of the particle. ħ = h /2π are the Planck constants. c = speed of light. Schrödinger equation.

  5. Schrödinger equation - Wikipedia

    en.wikipedia.org/wiki/Schrödinger_equation

    Linearity. The Schrödinger equation is a linear differential equation, meaning that if two state vectors and are solutions, then so is any linear combination. of the two state vectors where a and b are any complex numbers. [13] : 25 Moreover, the sum can be extended for any number of state vectors.

  6. Snell's law - Wikipedia

    en.wikipedia.org/wiki/Snell's_law

    Now apply Snell's law to the ratio of sines to derive the formula for the refracted ray's direction vector: sin ⁡ θ 2 = ( n 1 n 2 ) sin ⁡ θ 1 = ( n 1 n 2 ) 1 − ( cos ⁡ θ 1 ) 2 {\displaystyle \sin \theta _{2}=\left({\frac {n_{1}}{n_{2}}}\right)\sin \theta _{1}=\left({\frac {n_{1}}{n_{2}}}\right){\sqrt {1-\left(\cos \theta _{1}\right ...

  7. Fine structure - Wikipedia

    en.wikipedia.org/wiki/Fine_structure

    Fine structure. Interference fringes, showing fine structure (splitting) of a cooled deuterium source, viewed through a Fabry–Pérot interferometer. In atomic physics, the fine structure describes the splitting of the spectral lines of atoms due to electron spin and relativistic corrections to the non-relativistic Schrödinger equation.

  8. Prandtl–Glauert transformation - Wikipedia

    en.wikipedia.org/wiki/Prandtl–Glauert...

    The small-disturbance potential equation then transforms to the Laplace equation, ϕ ¯ x ¯ x ¯ + ϕ ¯ y ¯ y ¯ + ϕ ¯ z ¯ z ¯ = 0 (in flow field) {\displaystyle {\bar {\phi }}_{{\bar {x}}{\bar {x}}}+{\bar {\phi }}_{{\bar {y}}{\bar {y}}}+{\bar {\phi }}_{{\bar {z}}{\bar {z}}}=0\quad {\mbox{(in flow field)}}}

  9. Thomas precession - Wikipedia

    en.wikipedia.org/wiki/Thomas_precession

    Spacetime. In physics, the Thomas precession, named after Llewellyn Thomas, is a relativistic correction that applies to the spin of an elementary particle or the rotation of a macroscopic gyroscope and relates the angular velocity of the spin of a particle following a curvilinear orbit to the angular velocity of the orbital motion.

  10. Gibbs paradox - Wikipedia

    en.wikipedia.org/wiki/Gibbs_paradox

    The first constraint defines the surface of a 3N-dimensional hypersphere of radius (2mU) 1/2 and the second is a 3N-dimensional hypercube of volume V N. These combine to form a 6N-dimensional hypercylinder. Just as the area of the wall of a cylinder is the circumference of the base times the height, so the area φ of the wall of this ...

  11. Fresnel equations - Wikipedia

    en.wikipedia.org/wiki/Fresnel_equations

    Since the Fresnel equations were developed for optics, they are usually given for non-magnetic materials. Dividing ( 4) by ( 5 )) yields. For non-magnetic media we can substitute the vacuum permeability μ0 for μ, so that that is, the admittances are simply proportional to the corresponding refractive indices.