If the wavelength of light in an experiment on photoelectric effect is doubled, (a) the photoelectric emission will not take place

(b) the photoelectrons are emitted but are reabsorbed by the emitter metal

(c) become more than double

(d) will either increase or decrease.

(c) is related to the shortest wavelength

(a) there is a minimum frequency below which no photoelectrons are emitted  (b) the maximum kinetic energy of photoelectrons depends only on the frequency of light and not on its intensity  (c)...

(a) the intensity of the source is increased

(b) The kinetic energy of the electrons will increase.

Einstein's photoelectric equation is Ek = hv -W for a single photon ejecting a single electron.  (i) Explanation of frequency law: When frequency of incident photon (v), increases, the kinetic energy...

(a) The observed characteristics of photoelectric effect could not be explained on the basis of wave theory of light due to the following reasons.  (i) According to wave theory, the light...

(d) Radio waves are a form of electromagnetic radiation, created whenever a charged object (in normal radio transmission, an electron) accelerates with a frequency that lies in the radio frequency...