The figure shows the variation of stopping potential V₀ with frequency v of incident radiation, for three materials M₁, M₂ and M₃ with work functions φ₁, φ₂ and φ₃ respectively. Then :

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MCQ (Single)Effect of Frequency on Stopping PotentialCBSE PYQ

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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.

TextEffect of Intensity on Photoelectric CurrentEffect of Frequency on Stopping Potential

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)

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