Question
Physics Question on Semiconductor electronics: materials, devices and simple circuits
In a p–n junction photocell, the value of the photo electromotive force produced by monochromatic light is proportional to
A
The intensity of the light falling on the cell
B
The frequency of the light falling on the cell
C
The voltage applied at the p–n junction
D
The barrier voltage at the p–n junction
Answer
The intensity of the light falling on the cell
Explanation
Solution
In a p-n junction photocell, the photo electromotive force generated by monochromatic light is directly proportional to the intensity of the incident light.