Advertisements
Advertisements
Question
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.
Advertisements
Solution
A radioactive source emits three types of radiations. These are a
radiations, β radiations and Y radiations.
(i) α radiations and β radiations a re charged radiations.
(ii) Y radiations a re most penetrating radiations.
(iii) Y radiation travels with speed of light.
(iv) a radiations have largest mass.
APPEARS IN
RELATED QUESTIONS
What is thermionic emission?
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.
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?
Why should a radioactive substance not be touched by hands?
State two characteristics of the substance used as thermionic emitter.
In a cathode ray tube state the purpose of the fluorescent screen.
How is a cathode ray tube used to convert an electrical signal into a visual signal?
What is meant by Radioactivity?
Calculate the time interval between 33% decay and 67% decay if half-life of a substance is 20 minutes.
