The electron in any hydrogen atom jump on absorbing $12.75 \mathrm{eV}$ of energy would jump to.......orbit.
The electron in any hydrogen atom jump on absorbing $12.75 \mathrm{eV}$ of energy would jump to.......orbit.
$3$
$2$
$5$
$4$
Solution
The transition energy for hydrogen atom is given by,
$\Delta E=-R\left[\frac{1}{n_2^2}-\frac{1}{n_1^2}\right]$
When $R=13.6 \mathrm{eV}, n_1=1, n_2=$ ?
Given, $\Delta E=12.75 \mathrm{eV}$
$12.75=-13.6\left[\frac{1}{n_2^2}-\frac{1}{1^2}\right]$
$-0.9375=\frac{1}{n_2^2}-1$
$\begin{aligned} & \frac{1}{n_2^2}=-0.9375+1 \\ & n_2^2=16 \\ & n_2=4\end{aligned}$