A metallic plate exposed to white light emits electrons. For which of the followingcolours of light, the stopping potential will be maximum?(a) Blue (b) Yellow (c) Red (d) Violet

From the photoelectric effect experiment, following observations are made. Identify which of these are correctA. The stopping potential depends only on the work function of the metal.B. The saturation current increases as the intensity of incident light increases.C. The maximum kinetic energy of a photo electron depends on the intensity of the incident light.D. Photoelectric effect can be explained using wave theory of light.Choose the correct answer from the options given below:B, C onlyA, C, D onlyB onlyA, B, D only

If maximum velocity with which an electron can be emitted from a photo cell is 4 × 108 cm/s, the stopping potential is (mass of electron = 9 × 10–31 kg)

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

Light of wavelength 390 nm is directed at a metal electrode. To find the energy of electrons ejected, an opposing potential difference is established between it and another electrode. The current of photoelectrons from one to the other is stopped completely when the potential difference is 1.10 V. Determine i) the work function of the metal and ii) the maximum wavelength of light that can eject electrons from this metal. (amplify the signal?)

Light of wavelength 180nm strikes a metal target and photoelectrons are emitted. It is noticed that the photocurrent drops to zero at stopping potential of 0.8 V. The work function of the metal surface is___________a.None of theseb.5.03 eVc.6.09 eVd.3 eVe.3.7 eV