Advertisements
Advertisements
Question
What are the uses of radioactive isotopes in following?
(a) Medical field,
(b) Agriculture,
(c) Industries?
Solution
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.
APPEARS IN
RELATED QUESTIONS
What happens to the mass number of an element when (i) an α -particle, (ii) a β -particle, and (iii) γ -radiation is emitted?
A radioactive source emits three types of radiations. Name them.
(i) Name the radiations which are charged.
(ii) Name the radiations which are most penetrating.
(iii) Name the radiations which travel with the speed of light.
(iv) Name the radiations which have the largest mass.
A radioactive substance is oxidized. What changes would you expect to take place in the nature of radioactivity? Explain your answer.
During the emission of a beta particle, the ______ number remains same.
Why should a radioactive substance not be touched by hands?
How is a zinc sulphide screen affected when a cathode ray beam strikes it?
State any two uses of cathode rays.
In a cathode ray tube state the purpose of covering cathode by thorium and carbon.
Name a common device where a hot cathode ray tube is used.
Justify with reason, whether the following nuclear reactions are allowed or not.
\[\ce{^A_Z X -> ^A_{Z - 2}X + ^4_{2}He}\]
