Physics unit wice big question
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This document contains a list of important questions from the Physics I course at Rajiv Gandhi College of Engineering in Nemili, Sriperumbudur. The questions are divided into five sections: Ultrasonics, LASER, Fiber Optics, Quantum Physics, and Crystal Physics. The questions cover topics such as the construction and working of various oscillators and lasers, fiber optic communication systems, Planck's blackbody radiation formula, crystal structures, and defects in crystals. The list of questions was compiled by the lecturer of Physics, Mr. M. Ganapathy, from RGCE in Chennai.
![RAJIVGANDHI COLLEGE OF ENGINEERING, Nemili , Sriperumbudur-602105
Department of Physics
Physics I [PH 2111]-Important Big Questions
I.Ultrasonics
1. Explain the principle, construction and working of Magnetostriction oscillator.
2. Explain the principle, construction and working of Piezo-electric oscillator.
3. Describe the theory and measurement of velocity of Ultrasonic using Acoustic
grating.
4. Explain the applications of Ultrasonic wave in various fields.
( cavitations, drilling, welding, soldering ,cleaning , SONAR , ECG , A,B,C scan )
II.LASER
5. Derive Einstein’s coefficients.
6. Explain the construction and working of Nd : YAG LASER .
7. Explain the construction and working of CO 2 LASER.
8. Explain the construction and working of He:Ne LASER.
9. Explain the construction and working of Semiconductor LASER.
10.Explain the construction and reconstruction in hologram?
III.Fiber Optics
11. Derive expressions for numerical aperture and acceptance angle.
12. Explain the various types of fiber with neat diagram.
13. Explain different types of losses and dispersion in optical fiber .
14. With a neat diagram explain the fiber optic communication system and fiber optic
sensors .
IV.Quantum Physics
15. Derive the expression for Planck’s blackbody radiation formula and deduce Wien’s
displacement law and Rayleigh-Jeans law.
16. Derive the expression for change in wavelength of a light photon scattered by a
carbon atom. ( carbon atom )
17. Derive the expression for Schrödinger’s time dependent and time independent wave
equation. Derive the expression for the eigen value and eigen vector for a particle in
a one dimensional box.
18. With a neat diagram explain the construction and working of SEM , TEM .
V.Crystal Physics
19. Explain the number of atoms per unit cell ( n ) , atomic radius ( r ) , coordination
Number ( N ) and atomic packing factor ( apf ) for Simple Cubic , Body Centered
Cubic , Face Centered Cubic and Hexagonal Closely Packed structure .
20. What are Miller indices? Derive the relation between the inter planar distance ( d )
and lattice constant ( a ) .
21. Find out the crystal parameters for NaCl , ZnS , and Diamond structure .
22. Explain the various defects in the crystal .
Compiled By
Mr.M.Ganapathy,L/Physics ,RGCE ,Chennai](https://image.slidesharecdn.com/physics-unitwicebigquestion-100702032029-phpapp01/85/Physics-unit-wice-big-question-1-320.jpg)
Physics unit wice big question
- 1. RAJIVGANDHI COLLEGE OF ENGINEERING, Nemili , Sriperumbudur-602105 Department of Physics Physics I [PH 2111]-Important Big Questions I.Ultrasonics 1. Explain the principle, construction and working of Magnetostriction oscillator. 2. Explain the principle, construction and working of Piezo-electric oscillator. 3. Describe the theory and measurement of velocity of Ultrasonic using Acoustic grating. 4. Explain the applications of Ultrasonic wave in various fields. ( cavitations, drilling, welding, soldering ,cleaning , SONAR , ECG , A,B,C scan ) II.LASER 5. Derive Einstein’s coefficients. 6. Explain the construction and working of Nd : YAG LASER . 7. Explain the construction and working of CO 2 LASER. 8. Explain the construction and working of He:Ne LASER. 9. Explain the construction and working of Semiconductor LASER. 10.Explain the construction and reconstruction in hologram? III.Fiber Optics 11. Derive expressions for numerical aperture and acceptance angle. 12. Explain the various types of fiber with neat diagram. 13. Explain different types of losses and dispersion in optical fiber . 14. With a neat diagram explain the fiber optic communication system and fiber optic sensors . IV.Quantum Physics 15. Derive the expression for Planck’s blackbody radiation formula and deduce Wien’s displacement law and Rayleigh-Jeans law. 16. Derive the expression for change in wavelength of a light photon scattered by a carbon atom. ( carbon atom ) 17. Derive the expression for Schrödinger’s time dependent and time independent wave equation. Derive the expression for the eigen value and eigen vector for a particle in a one dimensional box. 18. With a neat diagram explain the construction and working of SEM , TEM . V.Crystal Physics 19. Explain the number of atoms per unit cell ( n ) , atomic radius ( r ) , coordination Number ( N ) and atomic packing factor ( apf ) for Simple Cubic , Body Centered Cubic , Face Centered Cubic and Hexagonal Closely Packed structure . 20. What are Miller indices? Derive the relation between the inter planar distance ( d ) and lattice constant ( a ) . 21. Find out the crystal parameters for NaCl , ZnS , and Diamond structure . 22. Explain the various defects in the crystal . Compiled By Mr.M.Ganapathy,L/Physics ,RGCE ,Chennai