The radius of the orbit of an electron in a Hydrogen-like atom is 4.5 ao where ao is the Bohr radius. Its 3h orbital angular momentum is It is given that h is Planck's constant and R is Rydberg constant. The 2 possible wavelength(s), when the atom de-excites, is (are) 9 (A) (B) (C) 16R 9 32R 9 5R (D) 4 3R