In a normal Zeeman Effect experiment, spectral splitting of the line at the wavelength 643.8 nm corresponding to the transition 5'D, → 5'P of cadmium atoms is to be observed. The spectrometer has a resolution of 0.01 nm. Minimum magnetic field needed to observe this is (m. = 9.1x10-3' kg,e=1.6x19 C,c = 3×10° m/s) (а) 0.267 (b) 0.527 (с) 2.6T (d) 5.27

In a normal Zeeman Effect experiment, spectral splitting of the line at the wavelength 643.8 nm corresponding to the transition 5'D, → 5'P of cadmium atoms is to be observed. The spectrometer has a resolution of 0.01 nm. Minimum magnetic field needed to observe this is (m. = 9.1x10-3' kg,e=1.6x19 C,c = 3×10° m/s) (а) 0.267 (b) 0.527 (с) 2.6T (d) 5.27