Andhra University 2008 B.E PHYSICS - Question Paper

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

PHYSICS

(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 equal marks

11

6. a) What is Piezo electric effect? define how this effect can

be used to produce ultrasonic waves.

b) Mention applications of ultrasonic waves.

7. a) Derive Schrodinger time independent wave formula and

find energy Eigen value and Eigen functions of a particle

moving in 1 dimensional box using Schrodinger wave

equation.

b) State and discuss Heisenbergs uncertainty principle.

8. a) Distinguish ranging from metals, semiconductors and insulators

based on band theory of solids.

b) describe Super conductivity, Meisner effect and write

applications of Super conductors.

12

1. a. discuss hardness of water?

b. elaborate galvanic cells? provide example?

c) describe HCV and LCV?

d) elaborate polymers? Classify

e) elaborate semi conductors?

2. a) elaborate boiler troubles? discuss.

b) discuss Green house effect

3. Write short notes on

a) Break point chlorination

b) Desalination

c) BOD and COD

4. a) elaborate defects in solids? discuss

b) discuss about organic semiconductors

5. a) elaborate primary and secondary cells?

b) Write the working of lead acid battery?

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

CHEMISTRY

(Common to Mechanical, Civil, EEE, ECE Branches)

Time : 3 hours Maximum : 75 Marks

ques. one is compulsory

ans any 4 from ques. two to 8

13

6. a) Differentiate ranging from thermo plastics and thermosetting

plastics.

b) Write the synthesis, properties and uses of polyethylene and

PVC

7. a) How does the percentage of C,H,N,O,S computed in a fuel?

b) What is knocking? discuss.
8. Write short note on

a) setting and hardening of cement.

b) Lubricants

c) Paints and Varnishes.

14

1. a) What is an algorithm and flow chart ?

b) What is a variable, discuss rules to follow in FORTRAN to

write a Variable name.

c) elaborate various data kind in C ?

d) discuss False position method.

e) What is numerical integration? Write the formula for Trapezoidal

rule.

2. a) Write a flow chart to obtain biggest of 3 numbers.

b) Write a program in FORTRAN to obtain the roots of a provided

quadtric formula.

3. a) Write a flow chart to obtain HCF a provided 2 integers.

b) Write a program in C to test whether the provided integer is
prime or not.

4. a) discuss different kinds of fault in numerical calculation.

describe absolute error, relative fault.

Earning:   Approval pending.