If  $0.53 \AA$ is the Bohr’s radius for the 1^st orbit of hydrogen atom, the correct statement (s) in the light of wave mechanical model of an atom, is/are
P)  The product of  ${\left(R_{n,l}\right)}^2$ and  $4\pi r^2$ increases till it reaches a distance of  $0.53 \AA$.
Q)   ${\left(R_{n,l}\right)}^2$  goes on increasing till it reaches a distance of  $0.53 \AA$.
R)  $R_{n,l}$  goes on decreasing till it reaches a distance of  $0.53\AA$.
S)  The nodal point for the 1s-orbital is at  $(0.53\times 2)\AA$ .