Class 12
Physics :-Additional Questions - Set - 1 - Nuclei.
_________ is used as a moderator in a nuclear reactor
In the nuclear decay given below
the particles emitted in the sequence are
In any fission process the ratio
Which of the following is not conserved in the nuclear reaction?
a. mass number
b. atomic number
c. fundamental particles
d. charge number
When an atom undergoes decay, its atomic number is ______
Curie is a unit of ______
The SI unit of activity of a radioactive substance is _______
Complete the nuclear reaction
The dependence of binding energy per nucleon (BN) on the mass number A is represented by
What is missing in the nuclear reaction?
In nuclear reactors, the controlling rods are a mode of _______
The nuclei 
and 
can be described as
Radioactive material has a half-life of 10 days. What function of the material would remain after 30 days?
A nuclear event is shown in the diagram.
a. Name the nuclear phenomenon.
b. What happens to the residual nucleus? Explain.
Z, A, and M represent the atomic number, mass number and rest mass of a nucleus.
a. What is this mass difference called?
b. Give the relation.
