Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

In a p – n junction photodiode, the value of the photo electromotive force produced by monochromatic light is proportional to:

Options:

the barrier voltage at p – n junction

the intensity of light falling on the cell

the frequency of light falling on the cell

the voltage applied at the p – n junction

Correct Answer:

the intensity of light falling on the cell

Explanation:

In photodiode, the photoelectromotive force is produced by photo – voltaic action i.e. a potential difference is created between two points whose magnitude depends upon the intensity of incident light.