Jee Advanced
Atoms And Nuclei
JEE Advanced 2014 Paper 2 Offline
MCQ+3 / -12014
If \(\lambda\)Cu is the wavelength of K\(\alpha\) X-ray line of copper (atomic number 29) and \(\lambda\)Mo is the wavelength of the K\(\alpha\) X-ray line of molybdenum (atomic number 42), then the ratio \(\lambda\)Cu/\(\lambda\)Mo is close to