If light of wavelength corresponding to maximum intensity emitted from a surface of hot body at temperature is used to cause photoelectric emission from a metallic surface, then maximum kinetic energy of the emitted photo electron is 6eV, which is 3 times the work function of the metallic surface. If the light of wavelength of maximum intensity emitted from a surface of same body at temperature is used, the maximum kinetic energy of photoelectrons emitted is (in eV)
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The graph between and stopping potential (V) of three metals having work functions and in an experiment of photo-electric effect is plotted as shown in the figure. Which of the following statement(s) is/are correct? [Here is the wavelength of the incident ray].
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