EntityQ905140· pop 17· linked from 58 articlessecondary emissionSign in to savephenomenon where primary incident particles of sufficient energy, when hitting a surface or passing through some material, induce the emission of secondary particlesConnectionsopticsEntityvacuum tubeEntitytetrodeEntityenergyEntityquantum mechanicsEntityelectronEntitythermodynamicsEntityNewton's laws of motionEntityclassical mechanicsEntityspecial relativityEntitygeneral relativityEntityionEntityNobel Prize in PhysicsEntityastrophysicsEntityelectric fieldEntitynuclear physicsEntityparticle physicsEntityacousticsEntitygeophysicsEntitybiophysicsEntityCategoriesCondensed matter physicsElectronElectronics conceptsVacuum tubes