Question1) Answer all the questions:
i) Describe charge conservation law for elementry particles.
ii) Describe the mechanism of cloud chamber.
iii) Write brief note on matter and antimatter.
iv) What is N/Z ratio? How is it related with nuclear stabilit.
v) Write Fermi’s theory of β -decay.
Question2) Describe chain reaction and criteria for self sustaining chain reactions.
Question3) What is radioactivity? Describe half life concept. Derive formula for half life and mean life of a radioactive material.
Question4) Explain the Eightfold way of messons and Quark model.