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2

Compact 6150 5110175 ೦೦100೫5 17 ೫711110 11071 (ಟಂ 00 ‏حل‎ f wavelength 600)

for light °
The radius of the 6** zone plate of focal length 10cm 07 118
15 +
The basic principle of optic fiber is -—————. (व ۲

Section B

. 5.
(Answer in a short paragraph- three or four sentence
Answer all questions. Each question carries 2. mar’ ks.

Draw Frenel’s two mirror arrangement ?
edium ?

What is polarizing angle. How is it related to refractive index of the m

What do you meant by double refraction ?

Define Translation matrix and refraction Matrix of an optical system.
Compare a zone plate and a convex lens ?
What are Newton’s rings ? What are its uses ?

How are the hologram classified ? Explain.
(7x 2 = 14 marks)

Section C

Answer in a paragraph of about half a page to one page.
Answer any five questions. Each question carries 4 marks.

State and explain Fermat’s principle of extremum path and use it to deduce the laws of reflection

and refraction of light.
What is system matrix ? Obtain it in the case ofa system of two thin lenses separated by a distance

and hence derive the formula for its focal length.
What is meant by interference of light ? State the fundamental conditj

ions for +
interference fringes. the production of
State the principle of superposition of light waves.
Define and explain polarization.
Distinguish between positive uniaxial ‘and negative uniaxial crystals

What 15 meant by சே itical angle of an optical fiber : Obtain an express ಟ್ಟ
ng! 6.

(5 x 4 = 20 marks)