(Paper) Engineering Physics, May-2001(MG University)

MG University
B. Tech Degree Examination, May 2001
First and Second Semester
Engineering Physics

(Common for all branches)

 

Time: Three Hours                                                                                                                                                                            Maximum: 100 Marks

Answer all questions Each question carries 4 marks
Part A



1

Explain the principles of holography.

2

Write a brief note on Electron microscope.

3

Explain Superconductivity.

4

Describe piezoelectric method of production of ultrasonic waves.

5

Explain space lattice.

6

Write a brief note on packing factor.

7

Explain the applications of dielectrics in engineering field.

8

Write a brief note on magnetic permeability.

9

Describe fibre optic sensors.

10

Explain numerical aperture of an optic fibre.


(10 x 4 = 40 marks)

Part B
Answer (a) or (b) Each question carries 12 marks

11

a) With neat sketches explain the working of Ga-As laser.

Or

b) Discuss the working of Ruby laser.

12

a) Explain the applications of superconductors.

Or

b) Define ultrasonic waves. Describe its production by magnetostriction method.

13

a) State and the explain band theory of solids.

Or

b) Explain in detail co-ordination number and Miller indices.

14

a) Discuss the classification of Magnetic materials.

Or

b) Discuss the engineering applications of Magnetic materials.

15

a) With the help of block diagram, explain an optical fiber communication system.

Or

b) Describe the properties and types of optical fibre.


(5 x 12 = 60 marks)