Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

In a p-n junction photo cell, the value of the photo-electromotive force produced by monochromatic light is proportional to

Options:

The barrier voltage at the p-n junction

The intensity of the light falling on the cell.

The frequency of the light falling on the cell

The voltage applied at the p-n junction

Correct Answer:

The intensity of the light falling on the cell.

Explanation:

In photocell, photoelectromotive force, is the force that stimulates the emission of an electric current when photovoltaic action creates a potential difference between two points and the electric current depends on the intensity of incident light