Question

What is LED
What do you know about LCD
Describe the laser printer
Describe the parts of of overhead projector
Write the uses of fax machine Describe any two digital screen

Answer 1

Answer:

the answer to the following first question is

A Light Emitting Diode (LED) is a semiconductor device, which can emit light when an electric current passes through it. ... The wavelength of the light emitted depends on the bandgap of the semiconductor material.

Answer 2

HOPE IT HELPS YOU

PLS MARK ME AS BRAINLIEST :)