Saturday, January 21, 2023

Dr. A.P.J. Abdul Kalam University MSC III SEM (Physics) Condensed Matter Physics (MSP301T) Dec 2020 Question Paper

Dr. A.P.J. Abdul Kalam University

Master of Science (Physics)

Third Semester Main Examination, Dec-2020

Condensed Matter Physics (MSP301T)

Time: 3:00 Hrs Max Marks 85

Note: Attempt all questions. Question no 1 to Question no. 4 has 2 parts. Part A is 10

marks and part B is 7 marks.

Q.1 (a) Explain Bravis Lattice in two and three dimension.

(b) Explain sodium chloride crystal structure.


(a) Explain crystal diffraction by XRay.

(b) Explain zinc bleede structure..

Q.2 (a) Explain Brillowin Zones in details. .

(b) Explain Bragy diffraction condition in terms of reciprocal lattice vector.


(a) Show relation between crystal lattice axes and crystal reciprocal lattice axes.

(b) Explain diamond structure in details.

Q.3 (a) Explain different types of stress and strain components.

(b) Explain elastic compliance and stiftness constants.


(a) Describe experimental determination of elastic constants.

(b) Explain elastic constant for cubic isotropic.

Q.4 (a) Explain lattice dynamic of a diatomic linear lattice.

(b) Explain lattice vibrational spectrum.


(a) Describe the concept of phonos and its momentrum.

(b) Describe inelastic scattering of photons by phonons.

Q.5 Write a short notes on (Any four)- (3.5 4)=17 (a) Band theory

of solids.

(b) De Hass Van Alphen effect

(c) Magneto resistance

(d) Anomalous skin effect

(e) Fermi surfaces

(f) Thermal conductivity

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