Shivaji University 2006 B.E Mechanical Engineering First Year Engineering , ENGINEERING PHYSICS-II - Question Paper

1st Year Engineering Examination,2006
ENGINEERING PHYSICS-II
Time:2 Hours
Maximum Marks:50

Instructions:
1)Attempt any 2 ques. from every part.
2)Draw neat figures wherever necessary.


part - I

1. a) explain Fraunhofer diffraction due to single slit and derive necesaary formula with neat diagram. [Marks 6]

b) Distinguish ranging from Fresnel kind and Fraunhofer kind of diffraction. [Marks 4]

c) A 200 mm long tube containing solution when plced in a Sacharometer provide an optical of rotation
of 11o. If the scientific rotation of sugar under the provided experimental conditions is 66o.
obtain the strength of solution. [Marks 3]

2. a) Expline the principle, construction and working of Nicol's prism. [Marks 5]

b) What is LASER ? Expline how the basic lasing action is achieved. [Marks 4]

c) A ray of light is incident on the surface of glass plate of R.I. 1.55 at the polarising angle.
compute the angle of refraction. [Marks 3]

3. Write notes on any 3 of the subsequent : [Marks 4*3=12]
a) Malus legal regulations and Brewstor's legal regulations.
b) plane diffraction grating.
c) Fiber optical communication system.
d) Holography.
e) Photoelasticity.
f) Applications of LASER.

part - II

4. a) describe subsequent terms : [Marks 4*1=4]
1) Unit cell
2) Single crystal
3) Space lattice
4) Polycrystalline materials.

b) What is Millar indices ? Derive relation ranging from interplanar distance and miller indices. [Marks 5]

c) In comparison of the 2 monocromatic X-ray lines. It is noted that line 'A' provide 1st order Bragg
reflection maximum at a glancing angle of 60o, from the identical face of te crystal. obtain the wavelength
of line 'A'. [Marks 3]

5. a) State and expline conversion of thermal energy. [Marks 5]

b) mention different kinds of integrated circuits. define the formation of monolithic integrated circuit.
Mention the steps involved during the formation. [Marks 7]

6. Write short notes on (any two) : [Marks 6*2=12]
1) Poer crystal diffractometer
2) Ocean energy
3) Advantages and limitations of IC's.

Earning:   Approval pending.