PHYSICS · Subjective · A Level · Physics · Particles and radiation · Particles and radiation
Problem
Stopping potentials of 24kV, 100kV, 110kV, and 115kV are measured for photoelectrons emitted from a certain element when it is irradiated with monochromatic X-rays. If this element is used as a target in an X-ray tube, what will be the wavelength of the Kα line?