The X rays used for both scientific and medical applications are usually produced by making high-velocity electrons collide with metallic targets. For electrnos accelerated in a field of 75,000 volts.
(a) compute the wavelength of the X rays produced
(b) if this same kinetic energy were to be transferred to a proton, how fast would that proton be traveling?
(c) What would the kinetic energy of an ejected electron from the surface of sodium metal be, if the incident radiation had a wavelenght of 1Å