According to Einstein's photoelectric equation, the graph of the kinetic energy of the emitted photoelectrons versus the frequency of incident radiation gives a straight line whose slope (a) depends on the intensity of incident radiation. (b) depends on the nature of the metal used. (c) is the same for all metals and independent of the intensity of radiation. (d) depends on both the intensity of incident radiation and the nature of metal used.

Answer: (c). Kmax = hν - φ, so the slope of the Kmax vs ν line is h. h is a universal constant: it does not depend on the metal or on intensity. So the answer is (c).

According to Einstein's photoelectric equation, the graph of the… | MHT CET 2026 (19 Apr, Shift 1)

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Photoelectric Experiment: Intensity, Stopping Potential & Graphs

According to Einstein's photoelectric equation, the graph of the kinetic energy of the emitted photoelectrons versus the frequency of incident radiation gives a straight line whose slope

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Answer: (c)

$K_{max} = h\nu - \phi$ , so the slope of the $K_{max}$ vs $\nu$ line is $h$ .
$h$ is a universal constant: it does not depend on the metal or on intensity.
So the answer is (c).

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