Subject : I- Quantum mechanics Maximum Marks : 30 Q6 Q7 Q8 Q6 Q7 Q8 Explain Direc delta function Explain Heitler -London theory of hydrogen molecule. Explain Pauli's exclusion principle. Explain orbital angular momentum. Explain born approximation Explain the properties of dirac matrices Define bosons & fermions Explain emission and absorption of radiation Explain time-independent perturbation theory for non-degenerate case. Explain the theory of x-decay Explain transition probabilities Define spherical harmonics Explain scattering cross section Define Klein - gordan equation Explain Fermi-dirac statistics Explain wave function for many electron system
Subject : II- Solid State Physics and Material Science Maximum Marks : 30 Explain free electronic model. Obtain an expression for effective mass of an electron. Discuss schottky and franked defect. Discuss BCS theory of superconductivity. Explain quantum theory of Paramagnetism. Explain the behavior of electron in periodic potential. Derive boltz Mann transport equation. Explain band gap and law mass action. Explain josephs on effect and flux quantization. Discuss nuclear magnetic resonance.
Subject : III- Nuclear and Particle Physics Maximum Marks : 30 Explain the binding energy curve for nuclei and it s consequences. Discuss the existence of excited states of deuteron and obtain the solution of spherically symmetric squre well potential for higher angular momentum states. What is meant by a symmetric in fission and spontaneous fission. Explain the Fermi theory of beta decay. Classify the elementary particles and define the terms hypercharge and strangeness. Describe the magnetic and quadrupole moments of nuclei with experimental determination. Give the elementary idea of yukawa theory of nuclear forces. Differentiate between liquid drop model and nuclear shell model. Discuss the multipofe transition and relection rules for decay of the nuclei.. Give the qualitative idea of quark lepton family and quantum chromo dynamics..
Subject : IV- Advanced Solid State Physics Maximum Marks : 30 Describe Sommerfield s free electrons model in metals and on this basis Explain the physical significance of fermi energy. What is Hall effect? Obtain an expression for hall coefficient. Obtain an expression for the electron and hole concentration is an intrinsic semiconductor. Discuss the theremodynamics of the superconducting transition and show that superconducting state is were ordered than the normal state. Describe Langevin s theory of diamagnetisms. On the basis of band theory explain the difference between metal semiconductors and insulators. Obtain an expression for the effective mass of electron in crystals.. Explain the use of P-N junction is full wave rectifier. Describe meissner effect and discuss the magnetic properties of a supercoducting material. Explain the difference between dia, Para and ferro magnetism.
M. Sc. Physics Final Subject: IV (Optional) Digital Electronics Maximum Marks: 30 Assignment- I Explain Astable multi-vibrator with logic diagram and monograph What are the characteristics of OP-AMP and how it is used as a subs-tractor? What is a microprocessor? Explain the function of building block of a 8085 microprocessor? (a) Draw and discuss the symbol of a basic logic gates with their truth table? (b) What is karnaught Map? Explain with examples. What is seven-segment display system? Explain with examples. Assignment- II Explain with block diagram, half adder and full adder. Explain Bi-stable multi-vibrator with logic diagram and monograph? What do you mean by Bi-polar logic families? Explain operation of TTL with advantages. What is the purpose of using Flip-Flop? Explain the logic diagram and working of clocked RSSF and master slave JK flip-flop. Where wave-shaping devices are used. Explain the process of square wave, triangular and sawtooth wave generation?
M. Sc. Physics Final Subject: IV (Optional) Communication Electronics Maximum Marks: 30 Assignment- I What is normalized power? Explain normalized power in Fourier expansion. Explain DSB-SC and SSB modulation systems. (a) What do you understand by Pulse Duration Modulation (PDM). (b) Explain Pulse Amplitude Modulation (PAM). Write notes on the following: (a) Transferred electron devices. (b) Atmospheric effect on microwave propagation. (a) Write a note on the bit transmission and signaling rate. (b) Describe Delta Modulation and Adoptive delta modulation. Assignment- II Discuss Dirac Delta and Gate function. What is Pulse modulation? Explain Pre-emphasis and De-emphasis. What is the necessity of modulation? Explain multi-tone modulation? What is sampling? What are the conditions of ideal sampling? Discuss the advantages and disadvantages of microwave transmission.