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MHT CET 2026 (16 Apr, Shift 1) · Photoelectric Experiment: Intensity, Stopping Potential & Graphs

Photoelectric Experiment: Intensity, Stopping Potential & Graphs question from MHT CET 2026 (16 Apr, Shift 1)

Q7MHT CET 2026 · 16 APR · SHIFT 1Easy

Photoelectric Experiment: Intensity, Stopping Potential & Graphs

Using Einstein's photoelectric equation, the graphical representation between the kinetic energy (E) of emitted Photoelectrons and the frequency of incident radiation (ν\nu) is show correctly in figure

Figure

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Answer: (c)

  1. E=hν−ϕE = h\nu - \phi: a straight line of positive slope hh.
  2. E=0E = 0 at ν=ν0=ϕ/h>0\nu = \nu_0 = \phi/h > 0, so the line starts on the ν\nu axis at the threshold frequency, not at the origin.
  3. Graph C shows this.
  4. So the answer is (c) C.
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