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Dual Nature Of Radiation

IAT (IISER) 2022

MCQ+4 / -12022
The figures in the options show the photocurrent $J$ of a photoelectric material versus the frequency $f$ of an incident light beam. The light beam can have three different intensities $I_1, I_2, I_3$, with $I_3>I_2>$ $I_1$. Which of the options is correct?

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