engineering physics MCQ #1835

In a p-type semiconductor, the acceptor level is 0.05 eV above the valence band. The maximum wavelength of light that can create a hole is

engineering physics MCQ #1835

  1. Question 1

    Q1. In a p-type semiconductor, the acceptor level is 0.05 eV above the valence band. The maximum wavelength of light that can create a hole is

    • A) 2480 nm
    • B) 248 nm
    • C) 1240 nm
    • D) 620 nm

    Answer: 2480 nm

    Explanation: Using E = hc / λ, we get λ = hc / E = (6.626 * 10^-34 * 3 * 10^8) / (0.05 * 1.6 * 10^-19) = 2480 nm.