Phototransistors based on hetero-junction using _________ material are – McqOptions

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1.	Phototransistors based on hetero-junction using _________ material are known as waveguide phototransistors.
A.	InGaP
B.	InGaAs
C.	InGaAsP/ InAlAs
D.	ErGaAs
Answer» D. ErGaAs

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