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Which one of the following statements is wrong in the context of X-ray generated from and X-ray tube?(a) Wavelength of characteristic X-ray decreases when the atomic number of the target increases (b) Cut off wavelength of the continuous X-rays depends on the atomic number of the target (c ) intensity of the characteristic X-rays depends on the electrical power given to the x-ray tube (d) cut off wavelength of the continuous X-rays depends on the energy of the electrons in the X-ray tubeA. Wavelength of characterstics X-ray 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 X-rays depends on the elecreical power given to the X-ray tubeD. Cut-off wavelength of the continuous X-ray depends on the energy of the electrons in the X-ray tube |
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Answer» Correct Answer - B `lambda_(min)=(hc)/(eV)` Cut off wavelength depends on the energy of the accelerated electrons and is independent of nature of target. `lambda_(kalpha)prop(1)/((z-b)^(2))` characterstic wavelength depend on atomic no and cut off wavelength depend on energy of `e^(-)` |
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