Andhra University 2008 B.E PHYSICS - university paper
Wednesday, 01 May 2013 03:20Web
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. Write brief answers to the subsequent 5x3=15 Marks
a) Distinguish ranging from orbit and orbital.
b) What do you understand by super conductivity?
c) Briefly discuss the Effective Atomic Numer rule.
d) What do you understand by elctronegativity?
e) Differentiate ranging from determinate and indeterminate fault
2. a) explain the supeority of Quantum mechanical model of
hydrogen atom over Bohr model of the atom.
8 Marks.
b) Classify the elements into various types/groups explain their
general characteristics. seven Marks
3. a) Bring out the correlation ranging from electronic configuration
and the colour exhibited by an element in a flame test.
8 Marks
b) Mention the salient features of VSEPR theory, based on it
discuss the shapes of (i) XeF4, (ii) SF6 and (iii) CIF3
7 Marks
4. a) provide an account on Fajans Rules with typical examples
8 Marks
Earning: Approval pending. |