The figure shows photocurrent versus anode potential for three radiations 1, 2 and 3. Let their intensities be I₁, I₂ and I₃ and their frequencies be f₁, f₂ and f₃, respectively. Select the correct statements. Image
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Question

The figure shows photocurrent versus anode potential for three radiations 1, 2 and 3. Let their intensities be I₁, I₂ and I₃ and their frequencies be f₁, f₂ and f₃, respectively. Select the correct statements. Image

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G1 Physics · Accepted Answer

At fixed frequency above threshold, increasing intensity increases the photon flux and hence the saturation current, but does not change Kₘₐₓ or the stopping potential. Frequency controls Kₘₐₓ through Kₘₐₓ = hν−φ. Final: A: Image 1; B: Image 2; D: Image 4.