Question 202: Atoms & Nuclei

Question

A photon is emitted in transition from n = 4 to n = 1 level in hydrogen atom. The corresponding wavelength for this transition is (given, h = 4 $$	imes$$ 10$$^{-15}$$ eVs) :

Accepted Answer

$\frac{h c}{\lambda}=+13.6 \mathrm{eV}\left[\frac{1}{1}-\frac{1}{4^{2}}ight]$
$$
\Rightarrow \frac{4 	imes 10^{-15} 	imes 3 	imes 10^{-8}}{\lambda}=13.6\left[\frac{15}{16}ight]
$$
$\lambda=94.1 \mathrm{~nm}$

Answer

99.3 nm

Answer

94.1 nm

Answer

974 nm

Answer

941 nm

Atoms & Nuclei

A photon is emitted in transition from n = 4 to n = 1 level in hydrogen atom. The corresponding wavelength for this transition is (given, h = 4 $\times 10^{-15}$ eVs) :

Choose the correct answer: