August 2013
Beginner to intermediate
632 pages
16h 9m
English
Content preview from Engineering PhysicsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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CHAPTER 17
Nuclear Physics
17.1 Nuclear liquid drop model
In 1936, Niels Bohr proposed liquid drop model to explain nuclear fission. According to this model, the nucleus is analogous to a drop of liquid. The similarities between drop of liquid and nucleus are as follows:
- The force that holds the molecules of a drop together is similar to the short-range nuclear force that binds the nucleons in a nucleus.
- The surface tension forces act on the molecules, so the drop appears spherical in shape. Similarly, the short-range nuclear force makes the nucleus to be spherical in shape.
- The density of a liquid drop and a nucleus is independent of their volumes. The nucleus is incompressible and hence the density of all the nuclei is the same.
- The liquid ...
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