The wavelength of Kα X-rays for lead isotopes Pb^208, Pb^206 and Pb^204 are λ1,λ2, and λ3 respectively. Then and λ3 respectively. Then Pb^206 and Pb^204 are λ1 The wavelength of Kα X-rays for lead isotopes Pb^208 λ2 November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , [...]