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Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsPhotoelectric effectEasy2 minPYQ_2020

PhysicsEasysingle choice

In the photoelectric emission process from a metal of work function $1.8 eV$ , the kinetic energy of most energetic electrons is $0.5 eV$ . The corresponding stopping potential is

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Answer:

Solution:

The stopping potential V_sis related to the maximum kinetic energy of the emitted electron K_maxthrough the relation
$K_{m a x} = e V_{s}$

$0.5 e V = e V_{s}$ or $V_{s} = 0.5 V$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Modern PhysicsSubtopic:Photoelectric effect

⏱ 2mℹ️ Source: PYQ_2020

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