What is the ratio of the time periods (T_1//T_2) on second orbit of H atom to 3rd orbit of He^+

What is the ratio of the time periods (T_1//T_2) on second orbit of H

1.	What is the ratio of the time periods (T_1//T_2) on second orbit of H atom to 3rd orbit of He^+
Answer» `8//27` `32//27` `27//32` `27//8` SOLUTION :`(T_1)/(T_2) = (n_1^3)/(z_1^2)XX (z_2^2)/(n_2^3) IMPLIES(2^3)/(1^2) xx (2^2)/(3^3) implies(32)/(27)`