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प्रश्न
What are the uses of radioactive isotopes in following?
(a) Medical field,
(b) Agriculture,
(c) Industries?
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उत्तर
Radioactive isotopes are used in medical fieId
(i) Rays from Radium produce satisfactorily improvement in skin diseases.
(ii) Radiation from Co60 is used in cancer treatment.
(iii) Radio I131 is used to diagnose and treat thyroid di so rde rs.
Radioactive isotopes are used in agriculture
(i) Radioactive Phosphorus p32 is used in the study of metabolism.
(ii) Radioactive Sulphur S35 helps to study advantages and disadvantages of
fungicides.
(iii) Pests and insects can be killed by Y-rad iatio n.
Radioactive isotopes are used in ind us try.
(i) In manufacturing papers, plastic and metal sheets to control the thickness of the sheets.
(ii) Radioisotopes can be used to es ti mate the amount of wear in bearings.
(iii) Radioisotopes can be used to detect crack in welding, casting etc.
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संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube.
State the approximate voltage used to heat the filament
Under which conditions does the nucleus of an atom tend to radioactive?
State any two precautions to be taken while handling radioactive substances
What happens to the mass number of an element when (i) an α -particle, (ii) a β -particle, and (iii) γ -radiation is emitted?
Mention one important function of ear main parts:
State the principle on which the functioning of a nuclear reactor is based.
The half-life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be ______.
A radioctive sample decays `7/8` times its original quantity in 15 minutes. The half-life of the sample is ______.
Calculate the time interval between 33% decay and 67% decay if half-life of a substance is 20 minutes.
Assertion (A): The force of repulsion between atomic nucleus and α-particle varies with distance according to inverse square law.
Reason (R): Rutherford did α-particles scattering experiment.
