Loading....
Coupon Accepted Successfully!

 

Effect of Intensity and Frequency of Light

Effect of intensity If the intensity of light is increased (while it’s frequency is kept the same) the current levels off at a higher value, showing that more electrons are being emitted per unit time. But the stopping potential V0 does not change i.e.,
 
Intensity ∝ Number of incident photon ∝ Number of emitted photoelectron per time ∝ photo current
 
100213.png
Fig. 6
 
Effect of frequency If frequency of incident light increases, (keeping intensity is constant) stopping potential increases but their is no change in photoelectric current
 
100223.png
Fig. 7

Important Formulae for Photoelectric Effect

  • 99834.png and 99840.png
  • 99849.png 99855.png
  • 99861.png
  • 99867.png
  • 99878.png
  • 99884.png




Test Your Skills Now!
Take a Quiz now
Reviewer Name