TIA's Glossary of Telecommunication Terms
0-9 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
Planck's constant
The constant of proportionality, represented by the symbol h, that relates the energy E of a photon with the frequency 
of the associated wave through the relation E = h, where h = 6.626 × 10-34 joule•second.