X rays are emitted by a tube containing the element Niobium

Last updated: 6/9/2023

X rays are emitted by a tube containing the element Niobium Z 41 as anti cathode and the K x rays are allowed to be incident on an unknown gas containing hydrogen like ions It is found that the X rays cause the emission of photoelectrons with an energy of 2 7 keV from these ions Mark CORRECT options A the minimum voltage at which the x ray tube should be operated so that the momentum of the emitted photoelectrons is doubled is approx 24 5 kV B the approximate value of Z for the target of the anticathode after the momentum has been doubled is 50 using screening constant C the approximate value of the atomic number of the atoms of the gas is 32 using screening constant D the number of gas ions produced is approx 850 ions per second per m caused by X rays is if the intensity of X rays is 100 mW m and 1 of the X rays cause ionization