Maharishi Markandeshwar University (MMU) 2011-2nd Sem B.Tech Civil Engineering , Applied Physics - Question Paper

Maharishi Markandeshwar University
B.Tech second Semester (2011)
1051
PH-102 Applied Physics-2

Time Allowed:3 Hours Maximum Marks:60

Note: Attempt any 5 ques. in all selecting at lowest 1 from every unit.

UNIT-1

1. (a) elaborate Miller indices? provide their significance. How would you determine thr Miller Indices of a plane in acryatal? [7 marks]

(b) explain NaCl and ZnS crystal structures elaborate the co-ordination numbers in these unit cells? [5 marks]

2. (a) discuss ratating crystal method for Structure determination. [6 marks]

(b) Show that number of Frenkel defect at a provided temperature is proportional to sqr rt of (NNi). [6 marks]

UNIT-2

3. (a) explain failure of classical physics ans describe the terms
Wave function
Operator
Eigens Function
Eigen values [6 marks]

(b) Derive an expression for Schrodinger time dependent wave formula. [6 marks]

4. Write short notes on:

(a) Thermionic emission with derivation of Richardson formula and

(b) Drude theory of free electrons for conduction

[6+6 marks]

UNIT-3

5. (a) discuss the classification of solids into Metals, Semiconductors & Insulatorsan the basis of band theory. [8 marks]

(b) discuss in briefly the concept of Effective mass for Electrons and Holes. [4 marks]

6. explain Hall Effect and provide its application. [12 marks]

UNIT-4

7. (a) What is Superconductivity! Expalin kind one and kind two super conductors. [6 marks]

(b) Derive expression for London's formula. [6 marks]

8. What do you understand by Nano-Particles and nano-technology. elaborate various tools and techniques used in nano fabrication? Expalain briefly. [12 marks]

Earning:   Approval pending.