A cobalt target `(Z = 27)` is bomberded with electron and the wavelength of its characteristic spectrum are measured . A second , fainter characcteristic spectrum is also found because of an impurity in the target. The wevelength of the `K_(alpha)` lines are 178.9 pm (cobalt) and `143.5 pm` (impurity). What is the impurity?

A cobalt (atomic no. =27 ) target is bombereded with electrons and the wavelength of its characteristic x -rays spectrum are measured. A seconf weak characteristic spectrum is also found due to an impurity in the target. The wavelength of the K_(alpha) lines 225.0pm (cobalt ) and 100.0pm (impurity). Atomic number of the impurity is (take b=1)

A target element A is bombarded with electrons and the wavelengths of the characterstic spectrum are measured. A second characteristic spectrum is also obtained , because of an impurity in the target. The wavelengths of the K_(alpha) lines are 196 pm (element A) and 169 pm (impurity). If the atomic number of impurity is z=(10lambda-1) . Find the value of lambda . (atomic number of element A is 27).

An X-ray tube with a copper target is found to be emiting lines other than those due to copper. The K_(alpha) line of coper is known to have a wavelength 1.5405 Å and the other two K_(alpha) lines observed have wavelengths 0.7090 Å and 1.6578 Å Identify the impurities.

An X-ray tube with a copper target is found to be emiting lines other than those due to copper. The K_(alpha) line of coper is known to have a wavelength 1.5405 Å and the other two K_(alpha) lines observed have wavelengths 0.7090 Å and 1.6578 Å Identify the impurities.

In a coolidge tube, the tungsten (Z=74) target is bombarded by electrons. What is the minimum value of the accelerating potential to enable emission of characteristic K_(alpha) and K_(beta) lines of tungsten. ( The K,L & M levels of tungsten have Binding energies of 69.5, 11.3 & 2.30 keV respectively.)

The X-ray spectrum of a metallic target has been shown in figure (a) What is the accelerating potential difference for bombarding electrons? (b) Two characteristic X-rays have been shown in the figure one of them is k_(alpha) X-ray and the other one is k_(beta) X-ray. What is wavelength of k_(alpha) X-ray? (c) Find the atomic number of the target atom.

The K_(alpha) X - rays arising from a cobalt (z = 27) target have a wavelength of 179 pm . The K_(alpha) X - rays arising from a nickel target (z = 28) is

The K_(alpha) X - rays arising from a cobalt (z = 27) target have a wavelength of 179 pm. The K_(alpha) X - rays arising from a nickel target (z = 28) is

a. X-ray are electromagnetic waves because these are producted by the deceleration of fast moving electron . b. X-ray are electromagnetic waves because these produce line spectrum. c. the cut-off wavelength depends on the target metarial . d. The intensity of K_(alpha) transition is more probable then of K_(beta) e The transition. e. Frequency of K_(alpha) radiation is more than that of K_(beta) .