Chemistry - Atomic Structure Question with Solution | TestHub

ChemistryAtomic StructureMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasysingle choice

Number of photons having wavelength $632 .8 nm,$ emitted by $5 mW$ laser source in $1$ second is

Answer:

Solution:

$E = \frac{n h c}{λ}$
$5 \times 1 0^{- 3} J / s = n \times \frac{1240}{632.8} \times 1.6 \times 1 0^{- 19} J$
$n = 1.6 \times 1 0^{16}$

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

⏱ 2mℹ️ Source: PYQ_2020

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