Question

5 5. Find the kinetic energy of a neutron with the same wavelength as blue light ( 450 IM). You may assume it is non-relativistic. Compare your answer to the energy of that photon. Why is there a difference, if you find any? t non relativistic M. = 939.6 MeV/² d = 450nm p = hc = 1240 evnm 450nm 12.76 ev / kat = (2.7 bevje p = F > K = En 21939.6 Meyla) 4.054 x1b6eycz Comparing the energy of the photon and my answer, we see that my answer is smaller. The reason there is a difference is Electo magretz force. Neutron has mass

Answer 1

Energy of a photon to a he E = 1240 evinn - (2,76 ev / - 400 kt. of neutron = p ² = 1 h X 2n = zm t.135x10 ers 16.626 X 1034) A 450X10-9 / 2x 1.67X10 27 = 6.49810 28 g = 4.058109 en, w Ratio of KE. KERX. ht Xrama KEp = konx 2m.ch Since nenbron quite less has mass, its teis