Find the band gap energy when a light of wavelength 1240nm is incident on it.

Electronics and Communication Engineering (ECE) : Electromagnetic Field Theory - Quiz(MCQ)

1eV

2eV

3eV

4eV

Correct Answer : Option (A) : 1eV

Explanation : The band gap energy in electron volt when wavelength is given is, Eg = 1.24(μm)/λ = 1.24 x 10<sup>-6</sup>/1240 x 10<sup>-9</sup> = 1eV.

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