Which of the following statements is NOT corr | vedclass

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(C) An $LED$ (Light Emitting Diode) is a heavily doped $p-n$ junction diode that emits spontaneous radiation when forward biased.When the $LED$ is for

Vedclass · Accepted Answer

It emits light only when it is reverse biased.

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(C) An $LED$ (Light Emitting Diode) is a heavily doped $p-n$ junction diode that emits spontaneous radiation when forward biased.When the $LED$ is forward biased, electrons from the $n$-region and holes from the $p$-region move towards the junction and recombine.During this recombination, the energy released is in the form of photons (light).The energy of the emitted photons is approximately equal to or slightly less than the band gap energy $(E_g)$ of the semiconductor material.Therefore, the statement that it emits light when reverse biased is incorrect.

Which of the following statements is $NOT$ correct in the case of an $LED$?

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