CHEM 201 Lecture Notes - Lecture 8: Radio Wave, Radium, Matter Wave
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Radio waves have frequencies about 530 - 1700 kilocyclos per second (530 - 1700 khz). Calculate the wavelength, x, of a radio wave with frequency of 1. 460 x 10^6 s^-1. f. What is the wavelength of a microwave radium whose frequency is. Photoelectric effect cannot be explained. y the wave theory. Photoelectric effect is the ejection of an electron from its surface of a metal when light shines on it. A minimum amount of evergreen is required to remember its electrons. Einstein explains this by proposed that light consists of package of light (quartz) - which he calls photons. Energy of the photon is proportional to its frequency. Each electron is struck by a single photon. Only when the photon has enough energy can the electron be ejected from the atom. Light therefore has dual character of wave and particle (cid:12254) (dual nature of light) Question: what is the energy of a photon with a frequency of 1. 490 x.
