单词 | Einstein-Planck law |
释义 | Einstein-Planck law [¦īn´stīn ¦pläŋk ´lȯ] QUANTUM MECHANICS The law that the energy of a photon is given by Planck's constant times the frequency. RELATIVITY The equation of motion of a charged particle in an electromagnetic field, according to which its rate of change of momentum is equal to the Lorentz force, where the magnitude of the momentum is mv /(1-v2/c2)1/2, where m and v are the particle's mass and velocity, and c is the speed of light. |
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