Total No. of Questions [Total No. of Pages 2
M.Sc. (Second) DEGREE EXAMINATION, MAY 2018
Second Year
PHYSICS
Electromagnetic Theory and Modern Optics
Time 3 Hours Maximum Marks 70
Answer any Five of the following
All questions carry equal marks
Q1) Explain the boundary conditions at the plane of separation between two
dielectric media.
Explain how polarization can be achieved by reflection and refraction.
Q2) Write a note on total internal reflection.
Explain metallic reflection at oblique incidence.
Q3) Explain the properties of Laser light
Obtain the relation between the coherence of the field and the size of the source.
Q4) Explain the attainment of population inversion in four level Laser system.
Explain the working of He Ne Laser
Q5) Explain film resolution, source coherence and stability in holography.
Explain different types of holograms.
Q6) Explain total internal reflection in Fibre optics.
Explain mode theory of circular wave guides.
Q7) Obtain wave guide equations for step index fibers.
Discuss signal degradation in optical fibers.
Q8) Explain the pulse broadening in graded index fibers.
Discuss the mechanical properties of fiber and fiber cabling.
Q9) Write any two of the following
Change of phase on reflection.
CO2 Laser
Hologram recording materials.
Step index fiber structures.