The electrical conductivity of a semiconductor increases When electromagnetic radiation of wavelength shorter than 2500 nm is incident on it. What is the band gap energy in eV for the semiconductor ? [h = 6.63 x 10‐³⁴ J-s]
A. 0.9 eV
B. 1.2 eV
C. 1.8 eV
D. 0.5 eV
Answer:D
The electrical conductivity of a semiconductor increases When electromagnetic radiation of wavelength shorter than 2500 nm is incident on it. What is the band gap energy in eV for the semiconductor ? [h = 6.63 x 10‐³⁴ J-s]
A. 0.9 eV B. 1.2 eV C. 1.8 eV D. 0.5 eV