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

What is the effect on the maximum velocity of the emitted electron if the wavelength of the incident light is decreased?

What is the effect on the velocity of the emitted photoelectrons if the wavelength of the incident light is decreased?

What is the effect on the velocity of the emitted photoelectrons if the wavelength of the incident light is decreased ?

What is the effect on the velocity of emitted photoelectrons if the wavelength of the incident light is increased ?

How does K.E. of photoelectrons change when the intensity of radiation is increased?

The correct graph between the maximum energy of a photoelectron and the inverse of wavelength of the incident radiation is given by the curve

The maximum kinetic energy of emitted photoelectrons against frequency v of incident radiation is plotted as shown in figure. The slope of the graph is equal to

The threshold frequency of a metal is f_0 . When the light of frequency 2f_0 is incident on the metal plate, the maximum velocity of electrons emitted is v_1 . When the frequency of the incident radiation is increased to 5f_0 , the maximum velocity of electrons emitted is v_2 . Find the ratio of v_1 andv_2 .