JEE Main 20203 Sep, Evening shiftPhysicsEasyElectronic Devices66× since 2002
If a semiconductor photodiode can detect a photon with a maximum wavelength of 400 nm, then
its band gap energy is :
Planck’s constant h = 6.63 10^–34 J.s. Speed of light c = 3 10⁸
m/s