| OCR Text |
Show 9 - subatomic Qize of the electron, difficulties arise in Quantum mechanics ments. - Classical mechanics arose predicts continuous values of However, Planck particles and for light waves. for retical investigation of solution of these difficulties. a as results of experiment by assuming radiated in packets or quanta, given by E is n is constant a and the energy n taes on energy E in his = n that the energy (1I-7) possessed by the quanta of radiation, h (now known as Planck's constant), integral values, a a energy of kinetic be on clean metal n 1, 2, 3, = • is the Einstein • • surface, electrons frequency, are applied When emitted. The the emitted electrons is known experimentally to function of the surface. was nb"J> Planck's quantum hypothesis to the photoelectric effect. light falls theo- blackbody radiation, found that he could predict the where E measure- our frequency of the light falling The equation for the kinetic on the metal energy of the emitted electron is K,E where V is a minimum 0 and h is = h(.J -.J o ) frequency below which numerically equal to Planck's hypothesis was in packets was able to or that the energy of the photons, of energy h. completely explain the (II-8) no electrons emitted Einstein's constant. light waves With this are was concentrated hypothesis, photoelectric effect. Einstein |
