Q9. Stopping potentials of 24, 100, 110, 115 kV are measured for photoelectrons emitted from a certain element when it is irradiated with monochromatic X-rays. The element is used as a target in an X-ray tube. The energy of the K line is:Physics — Dawn of Modern Physics — Question 9 of 217A. 54 KeVB. 76 KeVC. 88 KeVD. 32 KeVPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →