Exam Details

Subject crystal growth
Paper
Exam / Course m.sc. in physics
Department
Organization alagappa university
Position
Exam Date April, 2016
City, State tamil nadu, karaikudi


Question Paper

M.Sc. DEGREE EXAMINATION, APRIL 2016
Fourth Semester
Physics
CRYSTAL GROWTH
(2011 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 2 20)
Answer all questions.
All questions carry equal marks.
1. Define space lattice.
2. What are primary and secondary nucleations?
3. Define solubility.
4. What is meant by syneresis?
5. What is meant by zone refining?
6. What are the commonly used solvents in flux growth?
7. What is chemical vapour deposition?
8. Define Miller indices.
9. Classify the types of defects in crystals.
10. State the rule for the conventional orientation of crystals.
Sub. Code
521510
RW-10851
2
Wk 11
Part B 5 25)
Answer all questions choosing either or
11. Discuss the crystal symmetry operations with
necessary diagrams.
Or
Explain the theory of surface energy.
12. Explain Meir's solubility diagram.
Or
Elucidate the mechanism of gel formation in silica
gel media.
13. Discuss the method of crystal growth using straight
tube method.
Or
List the merits and demerits of Bridgeman method.
14. Describe briefly the liquid encapsulation in crystal
growth process.
Or
Describe the method of zone refining process and
explain how is purification achieved.
15. Briefly explain the orientation of crystals by X-ray
method.
Or
Write a short note on etching.
RW-10851
3
Wk 11
Part C 10 30)
Answer any three questions.
All questions carry equal marks.
16. Explain in detail the two dimensional nucleation
theories.
17. Explain the growth of single crystals by temperature
gradient method.
18. Narrate the diagrams of apparatus used by Czochralski
and explain the attainment of equilibrium
thermodynamics.
19. Describe the method of growing single crystals by
chemical vapour deposition technique. What is the
uniqueness in this method?
20. Give details of the qualitative study on the properties of
crystals.


Other Question Papers

Subjects

  • advanced electronics
  • atomic and molecular physics
  • basic concepts of instrumentation
  • basics in environmental science
  • classical dynamics and relativity
  • classical mechanics
  • condensed matter physics
  • crystal growth
  • elective – crystal growth and thin films
  • elective – energy physics and environmental science
  • elective – medical physics
  • elective – numerical methods
  • elective — communication electronics
  • elective — microprocessors and micro controllers
  • elective — modern optics and laser physics
  • elective — nano science
  • electromagnetic theory
  • elementary numerical analysis
  • linear and integrated electronics
  • materials science
  • mathematical physics — i
  • microprocessor and electronic instrumentation
  • molecular spectroscopy
  • nuclear and particle physics
  • quantum mechanics
  • quantum mechanics — ii
  • solid state physics
  • thermodynamics and statistical mechanics
  • thermodynamicsandstatisticalphysics