Chemistry - Atomic Structure Question with Solution | TestHub
ChemistryAtomic StructurePhotoelectric EffectMedium2 minQB
ChemistryMediuminteger
In a photoelectric effect, a point source of green light of power 40 W emits monoenergetic photons that can just emit photoelectrons from an isolated metallic sphere of radius , place at a distance of 1 m from the light source. Assume one photoelectron is emitted out of every incident photons on sphere. If number of photoelectrons emitted from the sphere per second is . Find the value of ' x '.
(Use : λgreen = 4963 Å, hc = 12408 eV Å)
Answer:
9
Solution:
Work function of the metal .
Number of photon emitted from the power source per unit time photons. Number of photons incident on the metallic surface per unit time photons.
Number of photoelectrons coming out from the metal surface per unit time photoelectrons.
Stream:JEESubject:ChemistryTopic:Atomic StructureSubtopic:Photoelectric Effect
⏱ 2mℹ️ Source: QB
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