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Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsPhotoelectric effectEasy2 minPYQ_2020

PhysicsEasysingle choice

Electromagnetic radiations of wavelength $2000 Å$ are incident on a metal surface which has a work function $5.01 eV$ . The stopping potential for the given setup is

Options:

Answer:

Solution:

Incident energy $= \frac{12400}{2000} = 6.2 eV$

$∴ K . E . = 6.2 - 5.01 = 1.19 eV$

$∴$ Stopping potential = $1.19 eV$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Modern PhysicsSubtopic:Photoelectric effect

⏱ 2mℹ️ Source: PYQ_2020

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