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प्रश्न
Explain the use of radioactive in the field of medicine, agriculture and industry.
उत्तर
Uses of radioactivity in medical, agriculture and industry:
Uses in medical field:
(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 disorders.
Uses 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-radiation.
Uses in industry:
(i) In manutacturing papers, plastic ·and m·etal sheets to control the
thickness of the sheets.
(ii) Radioisotopes can be used to estimate the amount of wear in bearings.
(iii) Radioisotopes can be used to detect crack in welding, casting etc.
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संबंधित प्रश्न
In a cathode ray tube, what is the function of anode?
Why is a cathode ray tube evacuated to a low pressure?
Give the relative ionizing power of α, β and γ radiations.
Why are materials of low work function preferred as thermionic cathode materials?
Name the three main parts of a Cathode Ray Tube.
Name a common device where a hot cathode ray tube is used.
Two radioactive nuclei are represented by xAp and yAq and when p and q are mass numbers and x, y are the atomic number. How can the products be represented, i .e., what are the new values of p, q. x and y after the emission of an α-particle and a β-particle from A and B respectively.
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 ______.
