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The maximum kinetic energy of photoelectrons emitted from a surface when photons of energy 6 eV fall on it is 4 eV. The stopping potential in volt is________
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In gases of diatomic molecule, the ratio of two specific heat is
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Surface of sodium is illuminated by a light of 6000Å wavelength. Work function of sodium is 6 eV.Then minimum K.E. of emitted electrons is _____
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