Physics - Semiconductors Question with Solution | TestHub

$p-n$ photodiode is a semiconductor diode that produces a significant current when illuminated. It is reversed biased but is operated below the breakdown voltage. Energy of radiation $=$ band gap energy ie, $hv=2.0\mathrm{eV}$ $$\text{ or }v=\frac{2.0\times 1.6\times 10^{-19}}{6.6\times 10^{-34}}\approx 5\times 10^{14}\mathrm{Hz}$$