An increase in the intensity of incident light does not change the maximum velocity of the emitted photo electrons.Why ?

As the intensity of incident light increases

It is observed in an experiment on photoelectric effect that an increase in the intensity of the incident radiation does not change the maximum kinetic energy of the electrons. Where does the extra energy of the incident radiation go? Is it lost? State your answer with explanatory reasoning

in LED, intensity of emitted light

A photon of energy 2.5 eV and wavelength ′ λ ′ falls on a metal surface and the ejected electrons have maximum velocity ′ v ′ . If the ′ λ ′ of the incident light is decreased by 20%, the maximum velocity of the emitted electrons is doubled. The work function of the metal is :

In a photocell, increasing the intensity of incident light increases "……………….."

Assuming photoemission to take place , the factor by which the maximum velocity of the emitted photoelectrons changes when the wavelength of the incident radiation is increased four times , is

For photoelectric emission from certain metal the cut - off frequency is v . If radiation of frequency 2 v incident on the metal plate , the maximum possible velocity of the emitted electron will be ( m is the electron mass).