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MHT CET202411 May 2024Evening ShiftPhysicsDual Nature of MatterActual

In case of photoelectric effect, the graph of measured stopping potential ( V ₀ ) against frequency ' v ' of incident light is a straight line. The slope of this line multiplied by the charge of electron (e) gives

Options

  1. Athe work function of the metal.
  2. Bthe Planck's constant.
  3. Cthe maximum kinetic energy of the ejected electrons.
  4. Dthe threshold frequency for photoejection from the metal.

Correct answer

B. the Planck's constant.

Step-by-step solution

We know that, aligned & V ₀= h l - h v ₀ l & y = mx + c aligned The slope of this line is h l According to the question, h l e The slope of line is ' h ' (Planck's constant).

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