Chemistry - Atomic Structure Question with Solution | TestHub

ChemistryAtomic StructurePhotoelectric EffectMedium2 minQB

ChemistryMediumsingle choice

A dye absorbs a photon of wavelength $λ$ and re-emits the same energy into two photon wavelengths $λ_{1}$ and $λ_{2}$ respectively. The wavelength $λ$ is related with $λ_{1}$ and $λ_{2}$ as :-

Options:

Answer:

Solution:

Energy conservation: $E = E_{1} + E_{2}$ .

Since $E = h c / λ$ ,

we have $1/ λ = 1/ λ_{1} + 1/ λ_{2}$ .

Thus, $λ = \frac{λ _{1} λ _{2}}{λ _{1} + λ _{2}}$ .

Stream:JEESubject:ChemistryTopic:Atomic StructureSubtopic:Photoelectric Effect

⏱ 2mℹ️ Source: QB

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