Find variation of angular speed and time period of single
. electron of hydrogen like atoms with n and Z.

Answer

A, B, C

Explanation

Angular speed, `omega = (v)/(r )`
. Now, `v prop (z)/(n)` and `r prop (n^2)/(Z)`
. `:. Omega prop ((Z//n)/(n^2//Z))` or `omega prop (Z^2)/(n^3)`
. Time period, `T=(2pi)/(omega)` or T prop(1)/(omega)` :. T prop (n^3)/(Z^2)`.