Advertisements
Advertisements
Question
An LED emits visible light when it’s ______.
Options
Junction is reverse biased.
Depletion region widens.
Holes and electrons recombine.
The junction becomes hot.
MCQ
Fill in the Blanks
Advertisements
Solution
An LED emits visible light when it’s holes and electrons recombine.
Explanation:
Because of the recombination of electrons and holes, current flow occurs in the PN junction diode and thus the LED emits light.
shaalaa.com
Is there an error in this question or solution?
