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In photoelectric effect experiment, show the variation of (a) photocurrent with collector plate potential for a given surface for different intensities of incident radiation. Do the curves meet at any point ? If so, why ? (b) photocurrent with intensity of radiation incident on a surface keeping the frequency and plate potential fixed.
How would the stopping potential for a given photosensitive surface change if (i) the frequency of the incident radiation were increased ? and (ii) the intensity of incident radiation were decreased ? Justify your answer.
Plot suitable graphs to show the variation of photoelectric current with the collector plate potential for the incident radiation of (i) the same intensity but different frequencies ν₁, ν₂ and ν₃ (ν₁ < ν₂ < ν₃) (ii) the same frequency but different intensities I₁, I₂ and I₃ (I₁ < I₂ < I₃)
The work function of a metal is 2.31 eV. Photoelectric emission occurs when light of frequency 6.4 × 10¹⁴ Hz is incident on the metal surface. Calculate : (i) the energy of the incident radiation, (ii) the maximum kinetic energy of the emitted electron and (iii) the stopping potential of the surface.
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