most probable value of energy of X-ray photon is [7kev] in millikan oil drop experiment an oil drop of radius r & charge Q is held in equlibrium between d plates of a charged parallel plate capacitor when d potential difference is V to keep a drop of radius 2r & with a charge 2Q in equilibriumbetween d plates d potential difference required will be[4V]
most probable value of energy of X-ray photon is [7kev]
in millikan oil drop experiment an oil drop of radius r & charge Q is held in equlibrium between d plates of a charged parallel plate capacitor when d potential difference is V to keep a drop of radius 2r & with a charge 2Q in equilibriumbetween d plates d potential difference required will be[4V]