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Which one of the following statement is `WRONG` in the context of X- rays generated from X- rays tube ?A. Wavelength of characteristic X-rays decreases when the atomic number of the target increasesB. Cut-off wavelength of the continuous X-rays depends on the atomic number of the targetC. Intensity of the characteristic S-rays depends on the electrical power given to the X-rays tubeD. Cut-off wavelength of the continuous X-rays depends on the energy of the electrons in the X-ray tube |
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Answer» Correct Answer - B `lamda_(min) = (hc)/(eV)` Cut off wavelength depends on the energy of the accelerated electrons and is independent of nature of target `lamda_(Ka), prop (1)/((z-b)^(2))` characteristic wavelength depend on atomic no and cut off wavelength depend on energy of e. |
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