Which of the following material is used for infra-red LED's
(A) Gallium arsenide
(B) Gallium phosphide
(C) Silicon
(D) None of the above
Answer: (A)
Sunday 3 May 2020
Which of the following material is used for infra-red LED's, basic electrical mcq pdf, nts electrical, gat subject electrical engineering book pdf, cts electrical mcqs, nts mcqs 2019, electrical engineering past papers, electrical mcqs books, entry test preparation for electrical engineering
(A) Gallium arsenide
(B) Gallium phosphide
(C) Silicon
(D) None of the above
Answer: (A)
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