In the following diagram, photons of frequency 3Φ/h are incident on a metal, and interact with electrons at energy levels A and B.Which of the following statements is true?Select one:a.photoelectrons from energy level B will have more kinetic energy than those from energy level Ab.photoelectrons from energy level A will have more kinetic energy than those from energy level Bc.photoelectrons from A will require a smaller stopping voltage than those from level Bd.kinetic energy of photoelectrons depend only on photon frequency and are independent of inital electron energye.kinetic energy of photoelectrons depend only on work function and are independent of inital electron energyf.no photoelectrons will be emitted

Given below are two statements:Statement I : Out of microwaves, infrared rays and ultraviolet rays, ultraviolet rays are the most effective for the emission of electrons from a metallic surface.Statement II : Above the threshold frequency, the maximum kinetic energy of photoelectrons is inversely proportional to the frequency of the incident light.In the light of above statements, choose the correct answer from the options given below

Given below are two statements :Statement I : Stopping potential in photoelectric effect does not depend on the power of the light source.Statement II : For a given metal, the maximum kinetic energy of the photoelectron depends on the wavelength of the incident light.In the light of above statements, choose the most appropriate answer from the options given below.Statement I is incorrect but statement II is correctBoth Statement I and Statement II are incorrectStatement I is correct but statement II is incorrectBoth statement I and statement II are correct

10. Choose the incorrect statement(a) The number of photoelectrons emitted is proportional to light intensity(b) The velocity of photoelectrons is proportional to the frequency of light(c) Photoelectric effect is an instantaneous process.(d) Stopping potential is independent of incident frequency.11. Choose the incorrect statement. In the Compton scattering-(a) The increase in wavelength ∆𝜆, is independent of the incident wavelength.(b) Compton wavelength is always a constant quantity.(c) The wavelength increase, ∆𝜆, depends on the scattering angle of the photon(d) The wavelength increase is independent of the scattering angle of a photon.12. The phase speed of matter waves for a relativistic free moving particle in a vacuum is;(a) Equal to the speed of light in a vacuum(b) Less than the speed of light in a vacuum(c) More than the speed of light in a vacuum(d) Equal to half the speed of light in a vacuum

Radiations of frequency, (v) are incident on a photosensitive metal. The maximum kineticenergy of photoelectrons is E. When the frequency of the incident radiations is doubled, then whatis the maximum kinetic energy of the photoelectrons?

The maximum kinetic energy of emitted photoelectrons, from different metalsurfaces, depends upon:A. Intensity of incident light only ⃝B. Frequency of the incident light only ⃝C. Nature of metal surface ⃝D. Both frequency of incident light and nature of metal surface