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Physics - Semiconductors Question with Solution | TestHub

PhysicsSemiconductorsMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

The electrical conductivity of semiconductor increases when electromagnetic radiation of wavelength shorter than $24800 Å$ is incident on it. The band gap for the semiconductor is

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Answer:

Solution:

$ΔΕ =$ band gape energy

$λ =$ maximum wave length

$∆ = \frac{h c}{λ} = \frac{12400}{λ} e V$

$∆ E = \frac{12400}{24800} = 0.5 e V$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:SemiconductorsSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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