For the photoelectric effect, the maximum kinetic energy E_k of the photoelectrons is plotted against the frequency ν of the incident photons. The graph is a straight line cutting the frequency axis at the threshold frequency. The slope of the graph gives

(D) Planck's constant. E_k = hν - φ, a straight line in ν with slope h. So the slope is Planck's constant.

Dual Nature of Radiation and Matter question for JEE Main (JEE Main 2024 (30 Jan, Shift 2)), with solution

Q 12-11-075JEE MainJEE Main 2024 (30 Jan, Shift 2)Easy

For the photoelectric effect, the maximum kinetic energy $E_k$ of the photoelectrons is plotted against the frequency $\nu$ of the incident photons. The graph is a straight line cutting the frequency axis at the threshold frequency. The slope of the graph gives

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Dual Nature of Radiation and Matter question for JEE Main (JEE Main 2024 (30 Jan, Shift 2)), with solution

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