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An LED emits green light of wavelength λ = 5511.11 Å. Find the value of Eg.

3706Medium DSSSB TGT Computer Science 0 replies 2 views
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An LED emits green light of wavelength λ = 5511.11 Å. Find the value of Eg.

  • A1.25 eV
  • B2.25 eV
  • C3.606 eV
  • D36.06 eV
Correct answer: B

Explanation

E = hc/λ = 12400 eV·Å ÷ 5511.11 Å ≈ 2.25 eV.
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