Physics - Semiconductors Question with Solution | TestHub

PhysicsSemiconductorsPhysics of semiconductorEasy2 minPYQ_2022

PhysicsEasyinteger

The energy band gap of semiconducting material to produce violet (wavelength $= 4000 Å$ ) LED is _____ $eV$ . (Round off to the nearest integer).

Answer:

Solution:

Energy gap of semiconducting material $E_{g} = \frac{h c}{λ} = \frac{1242}{λ (nm)} = \frac{1242}{400} = 3.105$
Answer rounded to $3 eV$ .

Stream:JEESubject:PhysicsTopic:SemiconductorsSubtopic:Physics of semiconductor

⏱ 2mℹ️ Source: PYQ_2022

Loading discussions...