The wavelength of `k_alpha` line in the X-ray spectrum for tungsten (Z=74) is 200 Å. What would be the wavelength of same line for platinum Z =78 ?

Calculate the wavelength of K_(alpha) line for the target made of tungsten (Z = 74) .

Calculate the wavelength of K_(alpha) line for the target made of tungsten (Z = 74) .

The wavelength of H_alpha line in hydrogen spectrum was found 6563Å in the laboratory. If the wavelength of same line in the spectrum of a milky way is observed to be 6586Å, then the recessional velocity of the milky way will be

The wavelength of L_alpha line in X-ray spectrum of ._76Pt is 1.32Å. The wavelength of L_alpha line in X-ray spectrum of another unknown element is 4.17Å. If screening constant for L_alpha line is 7.4, then atomic number of the unknown element is

A The wavelength of the K_alpha line ofthe characteristic X rays emitted by an element is 0.64 Å . What is the wavelength of K_beta line emitted by the same element?