WAVE & PLANCK-EINSTEIN EQUATIONS

#### Physics

WAVE & PLANCK-EINSTEIN EQUATIONS

1. The wave equation: ν = f.λ (where ν = velocity, f = frequency, λ = wavelength).
2. The Planck-Einstein equation: E = h.f (where E = photon energy in electron volts (eV), h = Planck’s constant, f = frequency).
3. These can be combined to: E = h.c / λ or E = 1.24 / λ (where E in keV, λ in nm, c is the speed of EMR in a vacuum).

$v=f.\lambda&space;;&space;f=\frac{v}{\lambda&space;};&space;E=h.f;&space;E=h.\frac{v}{\lambda&space;};&space;E=\frac{h.c}{\lambda&space;}=\frac{1.24}{\lambda}$ (in a vacuum)

##### REFERENCES

1. Bushberg, J. T. (2012). The essential physics of medical imaging. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins. Find it at Amazon
2. Heggie, J. C., Liddell, N. A., & Maher, K. P. (1997). Applied imaging technology. Melbourne: St. Vincents Hospital.

Ⓒ A. Manickam 2018