In a hydrogen like atom, when an electron jumps from the M-shell to the L-shell, the wavelength of emitted radiation is λ. If an electron jumps from N-shell to the L-shell, the wavelength of emitted radiation will be :
(1) 27/20 λ
(2) 25/16 λ
(3) 16/25 λ
(4) 20/27 λ
