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With reference to Semiconductor Physics, Name the diode that emits spontaneous radiation when…

Physics20223 marksShort answer
With reference to Semiconductor Physics,
(a)
Name the diode that emits spontaneous radiation when forward biased.
(b)
Draw a labelled energy band diagram for a semiconductor.
(c)
Name the process that causes depletion region in a p-n junction.

Answer

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Semiconductor diode

From ISC 2022 Specimen Physics Paper 1, question 12(ii).