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प्रश्न
Unit of radioactivity is _______
विकल्प
roentgen
curie
becquerel
all the above
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उत्तर
All the above
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संबंधित प्रश्न
In a cathode ray tube, what is the function of anode?
What are isobars?
Give one example of isobars.
In the following fig. shows a radioactive source S in a thick lead container. The radiations pass through an electric field between the plates P and Q. Complete the diagram to show the paths of α , β and γ radiations.
Why is the source S placed in a thick lead container?
What are the uses of radioactive isotopes in following?
(a) Medical field,
(b) Agriculture,
(c) Industries?
During the emission of a beta particle, the ______ number remains same.
In a cathode ray tube state. How is it possible to increase the rate of emission of electrons.
State three common properties of beta rays and cathode rays.
Which part of the atom undergoes a change in the process of radioactive decay?
The half-life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be ______.
