engineering recuitment BARC Stipendiary Trainee Category I 2023 Mock Test Physics Atoms X Rays and the Ordering of the Elements
X rays of wavelength 0.065 nm undergo Compton scattering from free electrons in a target. What is the energy of the photons that are scattered at 90° relative to the incident rays?
(h = 6.63 × 10-34 J sec, me = 9.11 × 10-31 kg, c = 3 × 108 m/s)1
18.05 KeV
2
516.67 KeV
3
18.39 KeV
4
19.81 KeV