Which of the following materials is used in light-emitting diodes? – McqOptions

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1.	Which of the following materials is used in light-emitting diodes?
A.	Gallium arsenide sulphate
B.	Gallium arsenide phosphide
C.	Gallium chromate phosphide
D.	Gallium phosphide sulphate
Answer» C. Gallium chromate phosphide

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