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Dual Nature of Radiation and Matter — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsDual Nature of Radiation and Matter3 Marks
Question
Draw a plot showing the variation of photoelectric current with collector plate potential for two different frequencies, $ν_1 > ν_2,$ of incident radiation having the same intensity. In which case will the stopping potential be higher? Justify your answer.
✓

Answer



Stopping potential is more for the curve corresponding to frequency $v_{1 }$ Stopping potential is directly proportional to the frequency of incident radiation.
Alternate Answer
The maximum energy$($of the emitted photoelectrons$)$ increases with an increase in the frequency of the incident radiation.

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