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Semiconductor Electronics : Materials Devices and Simple Circuits — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsSemiconductor Electronics : Materials Devices and Simple Circuits2 Marks
Question
What is light-emitting diode (LED)? Write down its one application.
✓

Answer

Light Emitting Diode (LED) : It is a forward-biased p-n junction which spontaneously converts the biasing electrical energy into optical energy, like infrared and visible light. It is abbreviatated as LED.
Use of LED :
LEDs are used as indicator lamps, pilot lamps etc.

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