The device that regulates change in inte

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Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

The device that regulates change in intensity of illumination into change in electric current is:

Options:

LED

Zener diode

Photodiode

Transistor

Correct Answer:

Photodiode

Explanation:

The correct answer is Option (3) → Photodiode

A photodiode is a p-n junction diode that consumes light energy to produce an electric current by regulating the intensity of illumination.