engineering physics MCQ #5203

The energy gap in a semiconductor is 1.1 eV. What is the maximum wavelength of light that can be absorbed?

engineering physics MCQ #5203

  1. Question 1

    Q1. The energy gap in a semiconductor is 1.1 eV. What is the maximum wavelength of light that can be absorbed?

    • A) 1.12 μm
    • B) 1.13 μm
    • C) 1.14 μm
    • D) 1.15 μm

    Answer: 1.13 μm

    Explanation: Using E = hc / λ, we get λ = hc / E = (6.626 × 10^-34 × 3 × 10^8) / (1.1 × 1.6 × 10^-19) = 1.13 μm.