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ECE · Q238

Electronic Devices And Circuits

Engineering and GATE · ECE · question 238

Q238

Which one of the following statements is correct in respect of the use of Direct Gap (DG) and Indirect Gap (IG) semiconductors in fabrication of Light Emitting diode?

A.
Both DG and IG semiconductors are suitable
B.
Only DG semiconductor is suitable
Answer
C.
DG semiconductor is suitable and some IG materials having proper dopants are also used
D.
Only IG semiconductors are suitable

Answer: Option B

Solution

Answer: Option B
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