Question

With neat labelled circuit diagram, describe the experiment to study the characteristics of photoelectric effect.

Answer 1

Dear Student,

◆ Experiment to study characteristics of photoelectric effect -
- We'll require following for the expt - evacuated glass tube, two metal electrodes, quartz window on the side.
- Make a circuit as shown in the image. Connect plates P & C to positive & negative terminals of battery respectively.
- When UV light of suitable frequency is made incident on the plate, photoelectrons start flowing through circuit.

# Experimental findings -
1) Threshold frequency is variable for different metals.
2) The process is instantaneous.
3) Current produced is directly proportional to light intensity.
4) Stopping potential is directly proportional to threshold frequency.

Thanks for asking..

Answer 2

draw the circuit diagram which describes an experiment to study the photoelectric effect