For photoelectric emission from certain metal the cut-off frequency is v. If radiation of frequency 2v impinges on the metal plate, the maximum possible velocity of the emitted electron will be (m is the electron mass)
The figure shows a plot of photo current versus anode potential for a photo sensitive surface for three different radiations. Which one of the following is a correct statement?
The number of photo electrons emitted for light of a frequency v (higher than the threshold frequency v0) is proportional to:
A certain metallic surface is illuminated with monochromatic light of wavelength . The stopping potential for photo-electric current for this light is 3V0 If the same surface is illuminated with light wavelength 22, the stopping potential is V0. The threshold wavelength for this surface for photo-electric effect is
The photoelectric threshold wavelength of silver is 3250×1010 m. The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength 2536×1010 m is (Given h =4.14×10-15 eVs and c = 3×108 ms-1)
When the energy of the incident radiation is increased by 20%, the kinetic energy of the photoelectrons emitted from a metal surface increased from 0.5 eV to 0.8 eV. The work function of the metal is:
According to Einstein's photoelectric equation, the graph between the kinetic energy of photoelectrons ejected and the frequency of incident radiation is
Which of the following statement is correct?
