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  • The energy levels of an atom is shown in figure. Which one of thes

The energy levels of an atom is shown in figure.

Which one of these transitions will result in the emission of a photon of wavelength 124.1 nm ?
Given \left ( h= 6.62 \times 10^{-34}Js \right )

Option: 1

D


Option: 2

B


Option: 3

C


Option: 4

A


Answers (1)

best_answer

\underset{\substack{\downarrow \\(\mathrm{nm})}}{\lambda}=\frac{h c}{\Delta E}=\frac{1241}{\Delta E(\mathrm{ev})}=\frac{1241}{10}=124.1

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chirag

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