Which of the following is NOT a limitation of Bohr's model?

Suppose an electron is attracted towards the origin by a force$\frac{k}{r}$ where ${\rm{'k'}}$ is a constant and ${\rm{'r'}}$ is the distance of the electron from the origin. By applying Bohr model to this system, the radius of the ${{\rm{n}}^{{\rm{th}}}}$ orbital of the electron is found to be ${\rm{'}}{{\rm{r}}_{\rm{n}}}^\prime$ and the kinetic energy of the electron to be ${\rm{'}}{{\rm{T}}_{\rm{n}}}^\prime$. Then which of the following is true

Radius of the first orbit of the electron in a hydrogen atom is $0.53\,\,{A^0}$. So, the radius of the third orbit will be

The time of revolution of an electron around a nucleus of charge $Ze$ in ${n^{{\rm{th}}}}$ Bohr orbit is directly proportional to

The radius of hydrogen atom in its ground state is $5.3\,\, imes \,\,{10^{ - 11}}\,\,m$. After collision with an electron it is found to have a radius of $21.2\,\, imes \,\,{10^{ - 11}}\,\,m$. What is the principal quantum number $n$ of the final state of the atom

A muonic hydrogen atom is formed when a muon (a particle with a mass approximately 207 times that of an electron but the same charge) replaces the electron. Considering Bohr's model, what is the ratio of the ionization energy of muonic hydrogen to that of regular hydrogen?

What will be the angular momentum of an electron, if energy of this electron in $H$-atom is $- 1.5\,\,eV$ (in $J$-$s$)

In which of the following systems will the radius of the first orbit $\left( {n = 1} \right)$ be minimum

Given the value of Rydberg constants is ${\rm{1}}{{\rm{0}}^7}\,{{\rm{m}}^{ - 1}}$, the wave number of the last line of the Balmer series in hydrogen spectrum will be:

An electron in the $n = 1$ orbit of hydrogen atom is bounded by $13.6\,\,eV$. Energy requires to ionize it is

To explain his theory, Bohr used