QP Code: R20A12BS03 R20
Anurag University
B Tech I Year II-Semester Supplementary Examinations, July -2023
Course: Applied Physics
(Common to EEE & ECE)
Time:3Hours MaxMarks:60
Section –A (Short answer type questions)
• Answer all questions: (10 x 2 =20 Marks)
1. Define coherence.
2. What is Polarization?
3. List out applications of optical fibers.
4. What are characteristics of a laser?
5. What is matter wave?
6. State Heisenberg’s uncertainty principle.
7. Define Fermi level at OK.
8. Draw E-k diagram.
9. List out applications of direct and indirect band gap semiconductors.
10. Draw I-V characteristic of p-n junction diode.
Section—B (Essay Answer type questions)
• Answer all questions: (5x8=40 Marks)
11. A) Discuss interference in thin film by reflection.
OR
B) Describe Fraunhofer diffraction at single slit.
12. A) Explain classification of optical fibers on the basis of optical mode
propagation.
OR
B) What are Einstein’s coefficients? Derive relation between them.
13. A) Discuss Davisson and Germer’s experiment.
OR
B) Derive an expression for independent Schrödinger wave equation
14. A) Describe Kronig-Penny model.
OR
B) Derive an expression for concept of effective mass of the electron.
15. A) What is Hall Effect? Derive an equation for Hall coefficient.
OR
B) With a neat diagram explain construction and characteristics of a Solar cell.
Anurag University
B Tech I Year II-Semester Supplementary Examinations, July -2023
Course: Applied Physics
(Common to EEE & ECE)
Time:3Hours MaxMarks:60
Section –A (Short answer type questions)
• Answer all questions: (10 x 2 =20 Marks)
1. Define coherence.
2. What is Polarization?
3. List out applications of optical fibers.
4. What are characteristics of a laser?
5. What is matter wave?
6. State Heisenberg’s uncertainty principle.
7. Define Fermi level at OK.
8. Draw E-k diagram.
9. List out applications of direct and indirect band gap semiconductors.
10. Draw I-V characteristic of p-n junction diode.
Section—B (Essay Answer type questions)
• Answer all questions: (5x8=40 Marks)
11. A) Discuss interference in thin film by reflection.
OR
B) Describe Fraunhofer diffraction at single slit.
12. A) Explain classification of optical fibers on the basis of optical mode
propagation.
OR
B) What are Einstein’s coefficients? Derive relation between them.
13. A) Discuss Davisson and Germer’s experiment.
OR
B) Derive an expression for independent Schrödinger wave equation
14. A) Describe Kronig-Penny model.
OR
B) Derive an expression for concept of effective mass of the electron.
15. A) What is Hall Effect? Derive an equation for Hall coefficient.
OR
B) With a neat diagram explain construction and characteristics of a Solar cell.
