Question

How do LEDs work?
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Answer 1

Answer:

A light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. ... The first visible-light LEDs were of low intensity and limited to red.

Working principle: Electroluminescence

First production: October 1962

Explanation:

hope you find it helpful.......

Answer 2

Answer:

Hey there this is your answer!

A LED stands for light emitting diode.it works on the.principle of electroluminscence.it emits light when electric current passes through it .when the electric current come in contact with the electron in the semiconductor they recombine and form protons releasing energy.in this way the LED work.

hope this helps you!