Advertisements
Advertisements
Question
What are ‘Becquerel rays’?
Advertisements
Solution
Becquerel rays are ‘radioactive radiations’, emitted from radioactive substances like uranium, thorium etc. Since these radiations were discovered by Henry Becquerel, so they are named as ‘Becquerel rays’.
RELATED QUESTIONS
What happens if the negative potential is changed on a grid?
Name a gas caused by the Greenhouse effect
When is said to be the nucleus unstable?
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?
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?
What happens to the position of an element in the periodic table when it emits an alpha particle
Define free electrons.
In a cathode ray tube state the purpose of covering cathode by thorium and carbon.
The half-life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be ______.
A radioctive sample decays `7/8` times its original quantity in 15 minutes. The half-life of the sample is ______.
