GK
NUCLEAR SCIENCE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Thermal neutrons which are used to cause the fission of U-235 have energy ____ eV.
|
|
< 0.025
|
|
|
>1
|
|
|
1-25
|
|
|
> 200
|
Explanation:
Detailed explanation-1: -When uranium-235 is reacted by irradiation with neutrons, the uranium atoms split, releasing more neutrons, heat, and atoms with smaller atomic numbers. This process is called fission, and the heat produced can be harnessed to create electricity, similar to conventional fossil fuel power plants.
Detailed explanation-2: -Quantitatively, the thermal energy per particle is about 0.025 electron volt-an amount of energy that corresponds to a neutron speed of about 2, 000 metres per second and a neutron wavelength of about 2 × 10-10 metre (or about two angstroms).
There is 1 question to complete.