The graph shows the neutron-capture cross section for indium as a function of neutron energy. Which of the following statements can be deduced from the graph? A) The size of the nucleus varies. B) 100-eV neutrons are not captured. C) The reaction is most likely to occur for neutrons of 1 eV energy. D) The reaction is endothermic. E) Brehmstrahlung and characteristic K _$\alpha$ X rays are produced.

Question

Quizplus · Accepted Answer

The graph shows that the neutron-capture cross section for indium is highest for neutrons with an energy of approximately 1 eV. This means that the reaction is most likely to occur for neutrons with this energy. Option A is incorrect because the graph does not provide any information about nuclear size. Option B is incorrect because the graph shows that there is some capture of neutrons at energies below 100 eV. Option D is incorrect because the graph does not provide any information about whether the reaction is endothermic or exothermic. Option E is also incorrect because there is no information on X-ray production from the graph.

The Graph Shows the Neutron-Capture Cross Section for Indium as a Function