If λ c u is the wavelength of K α X-ray line of copper (atomic number 29) and λ M o is the…

If λcu is the wavelength of Kα X-ray line of copper (atomic number 29) and λMo is the wavelength of the Kα X-ray line of molybdenum (atomic number 42), then the ratio λcuλMo is close to
  1. 1.99
  2. 2.14
  3. 0.50
  4. 0.48

Solution

λCuλMo=ZMo-1ZCu-12

Asked in: JEE Advanced 2014 (Paper 2)

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