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ChemistryAtomic StructureMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasynumerical

The work function $(ϕ)$ of some metal is listed below. The number of metals which will show photoelectric effect when light of 300nm wavelength fall on the metal is

Answer:

4.00

Solution:

energy of light $= \frac{1240}{300} = 4.13 e V$ , so the metal having work function lower than 4.13eV will emit photoelectron, so the following 4 metals will show photoelectric effect

Stream:NTA_ABHYASSubject:ChemistryTopic:Atomic StructureSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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