Explain the physical meaning of each term, write semiempirical mass formula for a nucleus. Find the value of atomic number of most stable nucleus for a given mass number A.
cse-1997-subject-07-002
Explain the phenomenon of nuclear fission and obtain the expression for fissionability parameter. Show that the critical value of the fissionability parameter is 50.
cse-1997-subject-07-001
Mention the conservation law violated in the following elementary particle reactions:
(i) \mu^- \rightarrow e^- + u_o
(ii) n \rightarrow p + e^-
(iii) k \rightarrow \pi^o + \pi^o
(iv) e^- + e^- \rightarrow \gamma
cse-1997-subject-07-003
Taking only the spin motion of electron, proton and neutron and assuming them as point particles, obtain their magnetic moments. How far the values thus obtained agree with experimental values? If not, why? Explain.
cse-1996-subject-07-002
Write a comparative account of the following four processes: (i) \beta - decay (ii) positron emission (iii) electron capture (iv) inverse \beta- decay
cse-1996-subject-07-001
Define parity for a quantum mechanical system. Describe an appropriate experiment proving the parity violation in weak interaction. How can the parity violation in weak interaction be understood ? Explain.
cse-1996-subject-07-003
State conservation laws obeyed by strong and weak interactions.
cse-1995-subject-07-002
Explain why even-even nuclei are more stable than odd-odd nuclei.
cse-1995-subject-07-001
Establish the necessary equation for the liquid drop model of a nucleus. How does it explain fission?
cse-1994-subject-07-001
Whet are the conservation jaws of elementary particles? How are these applied to Leptons and Baryons?
cse-1994-subject-07-005
What is helicity of a neutrino? How is it measured?
cse-1994-subject-07-004
Describe and experiment that confirms the existence of neutrino.
cse-1994-subject-07-003
Explain parity violation in b decay.
cse-1994-subject-07-002
Write an essay on elementary particles with the following points: (i) Types of particles (ii) Quantum numbers (iii) Conservation laws (iv) Types of interactions
cse-1993-subject-07-002
Describe in brief a linear accelerator. How are the lengths of linear accelerator tubes calculated? Name some particles for which this technique is applied and order of energies reached.
cse-1993-subject-07-003
What are weak interactions? Mention the various processes in which the weak interactions play a dominant role.
cse-1993-subject-07-001
What is the relation between decay constant, half life and mean life of a radioactive element?
cse-1992-subject-07-006
What is nuclear fission? How is the nuclear fission of \text{U}_{92}^{235} brought about?
cse-1992-subject-07-005
How is binding energy of the nuclei determined?
cse-1992-subject-07-003
What changes occur in the nuclear when a \beta- Particle is emitted? What is the role of the neutrinion \beta emission?
cse-1992-subject-07-004