What should be the frequency of radiation to produce

Last updated: 6/27/2023

What should be the frequency of radiation to produce photoelectron having half the kinetic energy of those produced by the radiation of frequency 10 8 sec The critical frequency for emitted photoelectrons from a metal surface is 8 x 1016 sec A 12 x 10 4 sec 1 B 46 x 10 4 sec c 8 x 10 4 sec A 1014 1 1