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Q.

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 $h = 6.62 \times 10^{- 34} Js)$

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a

C

b

B

c

A

d

D

answer is B.

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Detailed Solution

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$E = \frac{1241}{λ (nm)} ev \Rightarrow \frac{1241}{124.1} e \cdot v \Rightarrow E = 10.0 eV$

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