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24 Jun 2009 07:33:45 IST

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The binding energy of the innermost electron in tungsten is 40 keV. To produce characteristic X-rays

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The binding energy of the innermost electron in tungsten is 40 keV. To produce characteristic X-rays using a tungsten target in X-ray tube, the potential difference V between the cathode and anticathode should be: - [A]. V 40 kV [D]. V >= 40 kV

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vignesh the cooler version of newton

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Joined: 16 Mar 2008

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1 Jul 2009 22:23:50 IST

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D.. V>=40 kV ..... if V is less than 40 eV, t wont b able to knock off the electron from the atom's influence completely...

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