MCQ
The wave function $(\Psi)$ of $2 s$ is given by
$\Psi_{2 s}=\frac{1}{2 \sqrt{2 \pi}}\left(\frac{1}{a_0}\right)^{1 / 2}\left(2-\frac{ r }{ a _0}\right) e ^{- r / 2 a _0}$
At $r=r_0$, radial node is formed. Thus, $r_0$ in terms of $a_0$
- A$r_0=a_0$
- B$r_0=4 a_0$
- C$r _0=\frac{ a _0}{2}$
- ✓$r_0=2 a_0$
