List of top Chemistry Questions on Photoelectric Effect asked in AP EAPCET

The work function of a metal depends on

The value of work function of a metal \(X\) is \(3.1\ \text{eV}\). The threshold frequency of it (in Hz) is
\[ (h=6.62\times 10^{-34}\ \text{Js}) \]

Radiations of two photons having energy three and nine times the work function of a metal are incident on the metal surface successively. The ratio of maximum velocities of photoelectrons emitted in two cases are:

The phenomenon of removal of electrons from a metal surface when it is made to strike with radiation of suitable frequency is called:

The incorrect statement among the following is (I = Intensity of incident radiation, f = frequency of incident radiation):

A metal has work function \(2.5\,\text{eV}\). If a radiation of frequency \(3.2\times10^{15}\,\text{Hz}\) is incident on this metal surface, then the maximum kinetic energy of ejected photoelectrons is \((h=6.6\times10^{-34}\,\text{J-s})\)