Opto Electronics – 15

15. LEDs fabricated from gallium arsenide emit radiation in the :

(a) Visible range
(b) Infrared region
(c) Ultraviolet region
(d) Ultrasonic region

Answer

Answer : (b)

Explanation

Explanation : No answer description available for this question. Let us discuss.

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Opto Electronics - 21
Opto Electronics » Exercise - 121. GaAs LED’s emit radiation in the : (a) Ultraviolet region (b) Visible region (c) Infrared region (d) Invisible region
Tags: region, opto, electronics, exercise, emit, radiation, ultraviolet, visible, infrared, engineering
Opto Electronics - 6
Opto Electronics » Exercise - 16. A laser diode can be fabricated using : (a) Germanium (b) Silicon (c) Gallium arsenide (d) Gallium phosphide
Tags: opto, electronics, gallium, exercise, fabricated, arsenide, engineering
Opto Electronics - 2
Opto Electronics » Exercise - 12. An LED is made up of : (a) Phosphorescent material (b) Germanium (c) Silicon (d) Gallium arsenide
Tags: opto, electronics, exercise, gallium, arsenide, engineering
Opto Electronics - 22
Opto Electronics » Exercise - 122. LED’s are fabricated from : (a) Si (b) Ge (c) Si or Ge (d) GaAs
Tags: opto, electronics, exercise, fabricated, engineering
Combinational Circuits - 230
5555555555230. How many inputs will a decimal-to-BCD encoder have? (a) 4 (b) 8 (c) 10 (d) 16
Tags: electronics, engineering

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