Devices based on quaternary PbSnSeTe and their ternary compounds, emi – McqOptions

MCQOPTIONS

1.	Devices based on quaternary PbSnSeTe and their ternary compounds, emit at wavelength?
A.	Between 3-4 μm
B.	Longer than 4 μm
C.	Between 3.5 to 4.2 μm
D.	Between 2 to 3 μm
Answer» C. Between 3.5 to 4.2 μm

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Devices based on quaternary PbSnSeTe and their ternary compounds, emit at wavelength?