Andhra University 2008 B.E NUMERICAL TECHNIQUES - Question Paper

I Year B.E./B.Tech Degree exams

COMPUTER PROGRAMMING AND NUMERICAL

TECHNIQUES

(Common to All Branches)

Time : 3 hours Maximum : 75 Marks

ques. one is compulsory

ans any 4 from ques. two to 8

All ques. carry marks

15

b) compute the values of ( )

( )

x2 y2

x y
-

+ with x = 0.4845

and y = 0.4800, using normalized floating point airthematic.

Compare the value with (x-y). Determine relative fault

of the former.

5. a) obtain the root of the subsequent equations accurate upto two decimal

places using false position method.

x3-2x2+3=0

b) obtain the root of the subsequent formula accurate upto two decimal

places using Newton - Raphson method.

sinx=1-x

6. a) From the subsequent table obtain the value of f (x)when

x = 0.21.

x 0.20 0.22 0.24 0.26 0.28 0.30

f (x) 1.6596 1.6698 1.6804 1.6912 1.7024 1.7139
b) From the subsequent table obtain the value of f (x)when x = 4.

x -1 0 three six 7

f (x) three -6 39 822 1611

16

7. a) compute the value of

2

0

I sinxdx

p

=ò by Simpson rule with

8 intervals.

b) Solve the subsequent system by Gauss - Elimination method

5x-2y+z=4

7x+y-5z=8

3x+7y+4z=10
8. a) Use Euler’s method to obtain y(0.1)y=x+y with y(0)=0

with h = 0.01.

b) Use Runge - Kutta method to obtain

y(0.2) in steps of 0.1

dy 2

x y

dx

= + with y(0)=1.

17
1. a) describe unit cell of space lattice.

b) describe ferrites with applications.

c) What is meant by Epitoxial process.

d) Write a short note on diffused resistors.

e) discuss superconductor with example.

2. What is meant by imperfections in solids. Write any two
dislocations and discuss the role of dislocations in crystal

growth.

3. discuss polarisability and write a note of frequency

dependence of Polarizability.

4. discuss in detail about Fabrication of crystal growth. Write

about role of polishing and photo formation of ohmic

contacts.

5. Write about principles of IC packing and thin film capacitors.
6. Write about magnetic and dielectric materials of Hard &

Soft magnetic materials. discuss about cathode sputtering.

7. discuss high frequency applications of Superconductors and

Biofunctional materials.

8. discuss in detail plastic deformation and Electro plating.

Earning:   Approval pending.