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JEE Main 20204 SeptemberEvening Shift
Exam
JEE Main
Year
2020
Date
4 September
Shift
Evening Shift
Subject
Physics
Chapter
Dual Nature of Matter

JEE Main 2020 · 4 September · Evening Shift · Physics · Dual Nature of Matter

In a photoelectric effect experiment, the graph of stopping...

In a photoelectric effect experiment, the graph of stopping potential VV versus reciprocal of wavelength obtained is shown in the figure. As the intensity of incident radiation is increased :

In a photoelectric effect experiment, the graph of stopping potential V versus reciprocal of wavelength obtained is

Options

  1. AStraight line shifts to right
  2. BSlope of the straight line get more steep
  3. CStraight line shifts to left
  4. DGraph does not change

Correct answer

D. Graph does not change

Step-by-step solution

Einstein's photoelectric equation is given by,

eVs=hν−Wo{eV}_{s} = hν - {W}_{o}, where Wo{W}_{o} is the work function.

⇒Vs=hceλ−Woe⇒ {V}_{s} = \dfrac{hc}{e \lambda} - \dfrac{{W}_{o}}{e}, where c=νλc = ν\lambda.

Intensity does not affect the frequency and work function of a material. Therefore, the graph does not change with increasing intensity.

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