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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
What are free electrons?
Complete the diagram as given above by drawing the deflection of radioactive radiations in an electric field
When is said to be the nucleus unstable?
Draw a diagram of a simple atom showing the nucleus and electrons. In this atom:
(a) What type of charge will there be on the nucleus?
(b) What is the value of this charge?
A certain nucleus A (mass number 238 and atomic number 92) is radioactive and becomes a nucleus B (mass number 234 and atomic number 90) by the loss of one particle.
What particle was emitted?
A nucleus is \[\ce{^24_11 Na}\] β-radioactive.
Write the equation represent β-decay.
An element P disintegrates by α - -emission and the new element suffers two further disintegrations, both by β -emission, to form an element Q. Explain the fact that P and Q are the isotopes.
Name a common device where a hot cathode ray tube is used.
What are ‘Becquerel rays’?
Explain, why radium paint, consisting of zinc sulphide and a trace of radium salt, glows in the dark?
