Atomic StructureHard
Question
The dynamic mass (in kg) of the photon with a wavelength corresponding to the series limit of the Balmer transitions of the He+ ion is
Options
A.4.22 × 10–36
B.2.24 × 10–34
C.2.42 × 10–35
D.4.22 × 10–35
Solution
$m = \frac{h}{c\lambda} = \frac{h}{c} \times R \times 2^{2}\left( \frac{1}{2^{2}} - \frac{1}{\infty^{2}} \right) = 2.4 \times 10^{- 35}\text{ kg}$
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