List of top Physics Questions on Atomic Models

Two electrons are moving in orbits of two hydrogen like atoms with speeds $3\times10^{5}\,\text{m/s}$ and $2.5\times10^{5}\,\text{m/s}$ respectively. If the radii of these orbits are nearly same then the possible order of energy states are ___ respectively.

Considering Bohr’s atomic model for hydrogen atom :
(A) the energy of H atom in ground state is same as energy of He+ ion in its first excited state. 
(B) the energy of H atom in ground state is same as that for Li++ ion in its second excited state. 
(C) the energy of H atom in its ground state is same as that of He+ ion for its ground state. 
(D) the energy of He+ ion in its first excited state is same as that for Li++ ion in its ground state.

Match List I with List II using Bohr’s Atomic Model
List IList II
(A) Radius of electron orbit(I) directly proportional to n2
(B) Angular momentum of electron(II) directly proportional to n
(C) Velocity of electron(III) inversely proportional to n
(D) Energy of electron(IV) inversely proportional to n2