A semiconductor material is subjected to

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Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

A semiconductor material is subjected to monochromatic light. Which of the following is true ?

Options:

The number of mobile charges decrease.

The number of mobile charges increase.

The number of mobile charges remain the same.

Depends upon the type of semiconductor material.

Correct Answer:

The number of mobile charges increase.

Explanation:

Simple excitations like light, heat or small applied voltage can change the number of mobile carriers in a semiconductor.