Ionization energy of a hydrogen-like ion A is greater than that of another hydrogen like ion B . Let r, u, E and L represent the radius of the orbit , speed of the electron , total energy of the electron and angular momentum of the electron respectively (for the same n ). In ground state :
A. `r_(A) gt r_(B)`
B. `u_(A) gt u_(B)`
C. `E_(A) lt E_(B)`
D. `L_(A) gt L_(B)`
