Calculate the velocity and kinetic energy with which the ele

Calculate the velocity and kinetic energy with which the electrons strike the target of an x-ray tube operated at 50,000 volts. What is the short-wavelength limit of the continuous spectrum emitted and the maximum energy per quantum of radiation?

Solution

kinetic energy = eV= 1.6 x 10^-19 x 50000= 8 x 10^-15 J

so, 1/2 x me x v^2 = 8 x 10^-15 j

so, 1/2 x 9.1 x 10^-31 x v^2 = 8 x 10^-15

so, v= 1.32 x 10^8 m/s