1)Describe the relationship of the law of conversation of mass and to radioactiv
ID: 1042239 • Letter: 1
Question
1)Describe the relationship of the law of conversation of mass and to radioactive decay process 2describe sources of radioactivity in the human environment 3) which source of radiation is most commonly encountered, natural sources or man made sources . 1)Describe the relationship of the law of conversation of mass and to radioactive decay process 2describe sources of radioactivity in the human environment 3) which source of radiation is most commonly encountered, natural sources or man made sources . 2describe sources of radioactivity in the human environment 3) which source of radiation is most commonly encountered, natural sources or man made sources .Explanation / Answer
1) Mass and radioactive decay processes are relate by the mass- energy relationship ie
E = mc^2
Which is Einstein theory of relativity, which states that mass and energy are interchangeable ie mass can be converted to energy and viceversa.
2) sources of radioactivity in human environment are:
- radionuclides like Uranium, plutonium, thorium etc which occurs in the earth crust. And there are around 60 radionuclides in the earth crust
- cosmic rays from space like UV, X-ray, gamma rays
- industrial and occupation
- medicinal procedures such as: X-ray, laser treatment etc
3) natural sources radiation is most commonly encountered, it accounts for nearly 55% - 70% of radioactivity exposure in human environment it includes radioactive in soil (radon) and rocks of earth crust, cosmic rays, radionuclides in earth crust, volcanic eruptions etc.
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