UNIT
I
1.
Explain the construction and working of piezo electric generator to produce
ultrasonic
waves. – EXPECTED.
2.
Explain the construction and production of ultrasonic waves using
magnetostriction
method with neat diagram
3.
Describe the method of determining the velocity of ultrasonic waves using
acoustic
grating
4.
In ultrasonic NDT what are the three different scan displays in common
use?
Explain. (10 + 6)
UNIT
II
1.
Explain the construction and working of laser (ANY ONE) using a neat energy level
diagram - EXPECTED
2.
For atomic transitions, derive Einstein’s relations and hence deduce the
expression
for the ratio of spontaneous emission rate to the stimulated emission
rate.
3.
What is holography? Describe the construction and reconstruction
methods
of a hologram. (4 + 6 + 6) - EXPECTED
UNIT
III
1.
Derive an expression for the numerical aperture and angle of acceptance of
fiber
in terms of refractive index of the core and cladding of the fiber. - EXPECTED
2.
Explain the concept of optical Fiber sensors and describe in detail about any
two
sensors. (6 + 10)
3.
Describe the double –crucible technique for producing optical fibers
4.
Explain with a neat block diagram, the
working of a fiber optical
communication
system
5.
Describe the principle, construction and working of light emitting diode
UNIT
IV
1.
Discuss in details Compton Effect its experimental verification. - EXPECTED
2.
Derive Planck’s law for black body radiation and hence deduce Wien’s law and
Rayleigh
Jean’s law
3.
Explain the working of TEM and SEM with neat diagram
4.
Derive time independent Schrödinger wave equation and hence deduce time
dependent
Schrödinger wave equation - EXPECTED
UNIT
V
1.
Explain in detail about crystal defects with neat diagram
2.
Explain in detail the crystal structures
of Diamond, Graphite, Nacl and Zns.
(any
one) - EXPECTED
3.
Derive an expression for the inter planar spacing for (hkl) planes of a cubic
structures