Advertisements
Advertisements
Question
Give the relative ionizing power of α, β and γ radiations.
Advertisements
Solution
Ionisation power of a particle is maximum. It is about 100 times more than that of β particles. Ionisation power of β particle is about 100 times more than that of γ radiations. γ radiations have least ionisation power.
APPEARS IN
RELATED QUESTIONS
Write one use of cathode ray tube.
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?
Explain the use of radioactive in the field of medicine, agriculture and industry.
What is nucleus of an atom? Compare its size with that of the atom. Name its constitutents. How is the number of these constituents determined by the atomic number its atomic model.
State two properties that a substance should possess when used as a thermionic emitter.
What is meant by Radioactivity?
What is the value of the speed of gamma radiations in air or vacuum?
Mention four properties of Becquerel rays.
A radioactive nucleus \[\ce{^A_ZX}\] undergoes spontaneous decay in the sequence \[\ce{^A_ZX -> _{Z-1 }B -> _{Z-3}C -> _{Z-2}D }\], where Z is the atomic number of element X. The possible decay particles in the sequence are ______.
If 10% of a radioactive substance decays in every 5 years, then the percentage of the substance that will have decayed in 20 years will be ______.
