A light emitting diode (LED) is fabricated using GaAs semiconducting material whose band gap is $1.42 eV$ . The wavelength of light emitted from the LED is :
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Answer:
C
Solution:
$λ = \frac{1240}{1.42} = 875 nm$ (Approx)

Question

A light emitting diode (LED) is fabricated using GaAs semiconducting material whose band gap is 1.42 eV . The wavelength of light emitted from the LED is :

TestHub · Accepted Answer

λ = 1.42 1240 ​ = 875 nm (Approx)

Physics - Semiconductors Question with Solution | TestHub

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