Quantum Physics

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Klein-Gordon Equation

The equation of motion for spinless particles, also known as the Klein–Gordon–Fock equation:

 , where:

c = Speed of Light (m/s)

 = Wave Function

t = Time (s)

 = Laplacian

Planck's Law

 , where:

I = Specific Radiative Intensity ((W*s)/(m2*sr))

h = Planck Constant (J*s)

 = Frequency (Hz)

c = Speed of Light (m/s)

e = Euler's Number

k = Thermal Conductivity (W/(m*K))

T = Temperature (K)

Planck-Einstein Equation

Also known as Planck's Relation, the energy of a photon is given by:

 , where:

E = Energy (J)

h = Planck's Constant (J*s)

f = Frequency (Hz)

Rydberg Constant

 , where:

R = Rydgberg Constant (1/m)

m = Electron Mass (kg)

e = Elementary Charge (C)

 = Electric Constant (F/m)

h = Planck Constant (J*s)

c = Speed of Light (m/s)

Rydberg Formula

 , where:

 = Wavelength of light emitted in spectral lines (m)

R = Rydberg Constant (1/m)

Z = Atomic Number

n1 < n2 and give a series of spectral lines.

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