CUET Preparation Today
CUET
Physics
Atoms
According to Bohr's model, the radius of the second orbit of helium atom is
0.53 Å
1.06 Å
2.12 Å
0.265 Å
$r=\frac{n^2}{Z}\left(r_0\right) ; \Rightarrow r_{(n=2)}=\frac{(2)^2}{2} \times 0.53=1.06 Å$
