Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

Assertion (A) : Light Emitting Diodes (LEDs) emit radiations spontaneously.

Reason (R) : LEDs are heavily doped forward biased p-n junctions.

Options:

Both A and R are true and R is the correct explanation of A

Both A and R are true, but R is the NOT correct explanation of A

A is true, but R is false

A is false, but R is true

Correct Answer:

Both A and R are true and R is the correct explanation of A

Explanation:

Due to this heavy doping, the emission of light from LEDs is spontaneous.