Question

Write a Short note on LED

Answer 1

Answer:

Full form of led is light emitting diode

Explanation:

It is simon ductor light resource that emitts lightwhen current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light (corresponding to the energy of the photons) is determined by the energy required for electrons to cross the band gap of the semiconductor. White light is obtained by using multiple semiconductor or a layer of light-emitting phosphor on the semiconductor device.