Download JNTUK (Jawaharlal Nehru Technological University Kakinada) B.Tech Supplementary 2014 Feb-March R10 I Semester (1st Year 1st Sem) ENGINEERING PHYSICS I Question Paper.
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a)Explain the interference of light due to thin lms.
(b)What is Coherent Length? Explain [12+3]
2. (a) Explain Rayleigh's criterion of resolution.
(b) Write a note on resolving power of a grating. [9+6]
3. (a) Discuss the various methods by which polarized light can be produced?
(b) The refractive index of glass is 1.5. Calculate the Brewster's angle for it. Also
calculate the angle of refraction. [9+6]
4. (a) What is Primitive cell? How does it di ers from unit cell?
(b) Illustrate the SC, BCC and FCC crystal structures.
(c) Write di erent crystal systems [3+9+3]
5. (a) Explain the principle, procedure and advantage of Debye-Scherrer method of
X-ray di raction.
(b) Obtain Miller indices of a plane which intercepts at a, b/2 and 3c in simple
cubic unit cell. Draw a neat diagram showing the plane. [11+4]
6. (a) What are important characteristics of Laser?
(b) What are the Scienti c, Industrial and Medical applications of Laser?
(c) What is the role of optical cavity and active medium in a Laser [4+6+5]
7. (a) What are the conditions to produce total internal re ection in optical ber.
(b) Describe structure of di erent types of Optical bers with ray paths.
(c) Calculate the angle of acceptance of a given optical ber, if the refractive
indices of the core and the cladding are 1.563 and 1.498 respectively. [3+8+4]
8. (a) Explain the working of Ultrasonic aw detector.
(b) Explain three di erent and most common types of scans used in Ultrasonic
inspection. [6+9]
?????
1 of 1
FirstRanker.com - FirstRanker's Choice
Code No: R10103/R10 Set No. 1
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a)Explain the interference of light due to thin lms.
(b)What is Coherent Length? Explain [12+3]
2. (a) Explain Rayleigh's criterion of resolution.
(b) Write a note on resolving power of a grating. [9+6]
3. (a) Discuss the various methods by which polarized light can be produced?
(b) The refractive index of glass is 1.5. Calculate the Brewster's angle for it. Also
calculate the angle of refraction. [9+6]
4. (a) What is Primitive cell? How does it di ers from unit cell?
(b) Illustrate the SC, BCC and FCC crystal structures.
(c) Write di erent crystal systems [3+9+3]
5. (a) Explain the principle, procedure and advantage of Debye-Scherrer method of
X-ray di raction.
(b) Obtain Miller indices of a plane which intercepts at a, b/2 and 3c in simple
cubic unit cell. Draw a neat diagram showing the plane. [11+4]
6. (a) What are important characteristics of Laser?
(b) What are the Scienti c, Industrial and Medical applications of Laser?
(c) What is the role of optical cavity and active medium in a Laser [4+6+5]
7. (a) What are the conditions to produce total internal re ection in optical ber.
(b) Describe structure of di erent types of Optical bers with ray paths.
(c) Calculate the angle of acceptance of a given optical ber, if the refractive
indices of the core and the cladding are 1.563 and 1.498 respectively. [3+8+4]
8. (a) Explain the working of Ultrasonic aw detector.
(b) Explain three di erent and most common types of scans used in Ultrasonic
inspection. [6+9]
?????
1 of 1
Code No: R10103/R10 Set No. 2
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a) State and explain Superposition principle?
(b) With ray diagram discuss the theory of thin lms and derive the condition for
constructive and destructive interference in the case of re ected system.
[3+12]
2. (a) What is meant by di raction of light? Explain.
(b) What is Rayleigh's Criterion for resolving power?
(c) De ne Resolving power of a grating. Derive the expression for Resolving power
of a grating based on Rayleigh's Criterion. [3+6+6]
3. (a) What do you mean by Polarisation?
(b) Distinguish between Polarised and Unpolarised lights.
(c) Discuss how the Circular and Elliptical Polarised lights can be produced?
[4+5+6]
4. (a) Explain the terms:
(i) Space Lattice (ii) Basis (iii) Unit Cell (iv) Primitive Cell
(b) Write notes on Bravias lattices
(c) Lithium crystallizes in BCC structure. Calculate the lattice constant, given
that atomic weight and density of Lithium are 6.94 and 530 kg/m
3
respectively.
[8+3+4]
5. (a) Derive Bragg's law and obtain the limiting condition for it.
(b) Obtain Miller indices of a plane which intercepts at a, b/2 and 3c in simple
cubic unit cell. Draw a neat diagram showing the plane. [11+4]
6. (a) Explain the construction and working of Ruby laser.
(b) What are the di erences between Homo junction Laser and Hetero junction
Laser? [10+5]
1 of 2
FirstRanker.com - FirstRanker's Choice
Code No: R10103/R10 Set No. 1
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a)Explain the interference of light due to thin lms.
(b)What is Coherent Length? Explain [12+3]
2. (a) Explain Rayleigh's criterion of resolution.
(b) Write a note on resolving power of a grating. [9+6]
3. (a) Discuss the various methods by which polarized light can be produced?
(b) The refractive index of glass is 1.5. Calculate the Brewster's angle for it. Also
calculate the angle of refraction. [9+6]
4. (a) What is Primitive cell? How does it di ers from unit cell?
(b) Illustrate the SC, BCC and FCC crystal structures.
(c) Write di erent crystal systems [3+9+3]
5. (a) Explain the principle, procedure and advantage of Debye-Scherrer method of
X-ray di raction.
(b) Obtain Miller indices of a plane which intercepts at a, b/2 and 3c in simple
cubic unit cell. Draw a neat diagram showing the plane. [11+4]
6. (a) What are important characteristics of Laser?
(b) What are the Scienti c, Industrial and Medical applications of Laser?
(c) What is the role of optical cavity and active medium in a Laser [4+6+5]
7. (a) What are the conditions to produce total internal re ection in optical ber.
(b) Describe structure of di erent types of Optical bers with ray paths.
(c) Calculate the angle of acceptance of a given optical ber, if the refractive
indices of the core and the cladding are 1.563 and 1.498 respectively. [3+8+4]
8. (a) Explain the working of Ultrasonic aw detector.
(b) Explain three di erent and most common types of scans used in Ultrasonic
inspection. [6+9]
?????
1 of 1
Code No: R10103/R10 Set No. 2
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a) State and explain Superposition principle?
(b) With ray diagram discuss the theory of thin lms and derive the condition for
constructive and destructive interference in the case of re ected system.
[3+12]
2. (a) What is meant by di raction of light? Explain.
(b) What is Rayleigh's Criterion for resolving power?
(c) De ne Resolving power of a grating. Derive the expression for Resolving power
of a grating based on Rayleigh's Criterion. [3+6+6]
3. (a) What do you mean by Polarisation?
(b) Distinguish between Polarised and Unpolarised lights.
(c) Discuss how the Circular and Elliptical Polarised lights can be produced?
[4+5+6]
4. (a) Explain the terms:
(i) Space Lattice (ii) Basis (iii) Unit Cell (iv) Primitive Cell
(b) Write notes on Bravias lattices
(c) Lithium crystallizes in BCC structure. Calculate the lattice constant, given
that atomic weight and density of Lithium are 6.94 and 530 kg/m
3
respectively.
[8+3+4]
5. (a) Derive Bragg's law and obtain the limiting condition for it.
(b) Obtain Miller indices of a plane which intercepts at a, b/2 and 3c in simple
cubic unit cell. Draw a neat diagram showing the plane. [11+4]
6. (a) Explain the construction and working of Ruby laser.
(b) What are the di erences between Homo junction Laser and Hetero junction
Laser? [10+5]
1 of 2
Code No: R10103/R10 Set No. 2
7. (a) Explain how the optical bers are classi ed.
(b) Explain the applications of optical bers
(c) An optical ber has a numerical aperture of 0.2 and a cladding refractive index
of 1.59. Find the acceptance angle for the ber in water which has a refractive
index of 1.33. [6+5+4]
8. (a) Explain the basic principle of ultrasonic testing.
(b) What are the advantages and limitations of ultrasonic testing. [5+10]
?????
2 of 2
FirstRanker.com - FirstRanker's Choice
Code No: R10103/R10 Set No. 1
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a)Explain the interference of light due to thin lms.
(b)What is Coherent Length? Explain [12+3]
2. (a) Explain Rayleigh's criterion of resolution.
(b) Write a note on resolving power of a grating. [9+6]
3. (a) Discuss the various methods by which polarized light can be produced?
(b) The refractive index of glass is 1.5. Calculate the Brewster's angle for it. Also
calculate the angle of refraction. [9+6]
4. (a) What is Primitive cell? How does it di ers from unit cell?
(b) Illustrate the SC, BCC and FCC crystal structures.
(c) Write di erent crystal systems [3+9+3]
5. (a) Explain the principle, procedure and advantage of Debye-Scherrer method of
X-ray di raction.
(b) Obtain Miller indices of a plane which intercepts at a, b/2 and 3c in simple
cubic unit cell. Draw a neat diagram showing the plane. [11+4]
6. (a) What are important characteristics of Laser?
(b) What are the Scienti c, Industrial and Medical applications of Laser?
(c) What is the role of optical cavity and active medium in a Laser [4+6+5]
7. (a) What are the conditions to produce total internal re ection in optical ber.
(b) Describe structure of di erent types of Optical bers with ray paths.
(c) Calculate the angle of acceptance of a given optical ber, if the refractive
indices of the core and the cladding are 1.563 and 1.498 respectively. [3+8+4]
8. (a) Explain the working of Ultrasonic aw detector.
(b) Explain three di erent and most common types of scans used in Ultrasonic
inspection. [6+9]
?????
1 of 1
Code No: R10103/R10 Set No. 2
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a) State and explain Superposition principle?
(b) With ray diagram discuss the theory of thin lms and derive the condition for
constructive and destructive interference in the case of re ected system.
[3+12]
2. (a) What is meant by di raction of light? Explain.
(b) What is Rayleigh's Criterion for resolving power?
(c) De ne Resolving power of a grating. Derive the expression for Resolving power
of a grating based on Rayleigh's Criterion. [3+6+6]
3. (a) What do you mean by Polarisation?
(b) Distinguish between Polarised and Unpolarised lights.
(c) Discuss how the Circular and Elliptical Polarised lights can be produced?
[4+5+6]
4. (a) Explain the terms:
(i) Space Lattice (ii) Basis (iii) Unit Cell (iv) Primitive Cell
(b) Write notes on Bravias lattices
(c) Lithium crystallizes in BCC structure. Calculate the lattice constant, given
that atomic weight and density of Lithium are 6.94 and 530 kg/m
3
respectively.
[8+3+4]
5. (a) Derive Bragg's law and obtain the limiting condition for it.
(b) Obtain Miller indices of a plane which intercepts at a, b/2 and 3c in simple
cubic unit cell. Draw a neat diagram showing the plane. [11+4]
6. (a) Explain the construction and working of Ruby laser.
(b) What are the di erences between Homo junction Laser and Hetero junction
Laser? [10+5]
1 of 2
Code No: R10103/R10 Set No. 2
7. (a) Explain how the optical bers are classi ed.
(b) Explain the applications of optical bers
(c) An optical ber has a numerical aperture of 0.2 and a cladding refractive index
of 1.59. Find the acceptance angle for the ber in water which has a refractive
index of 1.33. [6+5+4]
8. (a) Explain the basic principle of ultrasonic testing.
(b) What are the advantages and limitations of ultrasonic testing. [5+10]
?????
2 of 2
Code No: R10103/R10 Set No. 3
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a) Discuss the theory of Newton's rings with relevant diagram.
(b) Derive the expression for the diameters of dark and bright rings. [6+8]
2. (a) Describe Fraunhofer di raction due to single slit.
(b) Describe the action of plane transmission grating in producing di raction spec-
trum.
(c) Show that the grating with 500 lines/cm cannot give a spectrum in the 4
th
order for the light of wavelength 5890. [6+5+4]
3. (a) What is quarter wave plate? Deduce expression for its thickness
(b) Draw a ray diagram for extraordinary and ordinary rays before and after
passing through a quarter wave plate.
(c) At what wavelength, the given quarter wave plate of wavelength 600nm will
act as half wave plate.
4. (a) Explain the terms `Unit Cell', `Basis' and `Space lattice'.
(b) Obtain the relation between the edge of the unit cell and atomic radius for
SC, BCC and FCC lattices.
(c) Chromium has BCC structure. Its atomic radius is 0.1249 nm. Calculate the
free volume per unit cell. [3+8+4]
5. (a) What are Miller indices? How are they obtained?
(b) Deduce the expression for the interplanar distance in terms of Miller indices
for a cubic system.
(c) Obtain Miller indices of a plane which intercepts at a, b/2 and 3c in simple
cubic unit cell. Draw a neat diagram showing the plane. [5+6+4]
6. (a) Distinguish between Spontaneous and Stimulated emissions.
(b) What is the reason for mono chromaticity of laser beam?
1 of 2
FirstRanker.com - FirstRanker's Choice
Code No: R10103/R10 Set No. 1
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a)Explain the interference of light due to thin lms.
(b)What is Coherent Length? Explain [12+3]
2. (a) Explain Rayleigh's criterion of resolution.
(b) Write a note on resolving power of a grating. [9+6]
3. (a) Discuss the various methods by which polarized light can be produced?
(b) The refractive index of glass is 1.5. Calculate the Brewster's angle for it. Also
calculate the angle of refraction. [9+6]
4. (a) What is Primitive cell? How does it di ers from unit cell?
(b) Illustrate the SC, BCC and FCC crystal structures.
(c) Write di erent crystal systems [3+9+3]
5. (a) Explain the principle, procedure and advantage of Debye-Scherrer method of
X-ray di raction.
(b) Obtain Miller indices of a plane which intercepts at a, b/2 and 3c in simple
cubic unit cell. Draw a neat diagram showing the plane. [11+4]
6. (a) What are important characteristics of Laser?
(b) What are the Scienti c, Industrial and Medical applications of Laser?
(c) What is the role of optical cavity and active medium in a Laser [4+6+5]
7. (a) What are the conditions to produce total internal re ection in optical ber.
(b) Describe structure of di erent types of Optical bers with ray paths.
(c) Calculate the angle of acceptance of a given optical ber, if the refractive
indices of the core and the cladding are 1.563 and 1.498 respectively. [3+8+4]
8. (a) Explain the working of Ultrasonic aw detector.
(b) Explain three di erent and most common types of scans used in Ultrasonic
inspection. [6+9]
?????
1 of 1
Code No: R10103/R10 Set No. 2
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a) State and explain Superposition principle?
(b) With ray diagram discuss the theory of thin lms and derive the condition for
constructive and destructive interference in the case of re ected system.
[3+12]
2. (a) What is meant by di raction of light? Explain.
(b) What is Rayleigh's Criterion for resolving power?
(c) De ne Resolving power of a grating. Derive the expression for Resolving power
of a grating based on Rayleigh's Criterion. [3+6+6]
3. (a) What do you mean by Polarisation?
(b) Distinguish between Polarised and Unpolarised lights.
(c) Discuss how the Circular and Elliptical Polarised lights can be produced?
[4+5+6]
4. (a) Explain the terms:
(i) Space Lattice (ii) Basis (iii) Unit Cell (iv) Primitive Cell
(b) Write notes on Bravias lattices
(c) Lithium crystallizes in BCC structure. Calculate the lattice constant, given
that atomic weight and density of Lithium are 6.94 and 530 kg/m
3
respectively.
[8+3+4]
5. (a) Derive Bragg's law and obtain the limiting condition for it.
(b) Obtain Miller indices of a plane which intercepts at a, b/2 and 3c in simple
cubic unit cell. Draw a neat diagram showing the plane. [11+4]
6. (a) Explain the construction and working of Ruby laser.
(b) What are the di erences between Homo junction Laser and Hetero junction
Laser? [10+5]
1 of 2
Code No: R10103/R10 Set No. 2
7. (a) Explain how the optical bers are classi ed.
(b) Explain the applications of optical bers
(c) An optical ber has a numerical aperture of 0.2 and a cladding refractive index
of 1.59. Find the acceptance angle for the ber in water which has a refractive
index of 1.33. [6+5+4]
8. (a) Explain the basic principle of ultrasonic testing.
(b) What are the advantages and limitations of ultrasonic testing. [5+10]
?????
2 of 2
Code No: R10103/R10 Set No. 3
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a) Discuss the theory of Newton's rings with relevant diagram.
(b) Derive the expression for the diameters of dark and bright rings. [6+8]
2. (a) Describe Fraunhofer di raction due to single slit.
(b) Describe the action of plane transmission grating in producing di raction spec-
trum.
(c) Show that the grating with 500 lines/cm cannot give a spectrum in the 4
th
order for the light of wavelength 5890. [6+5+4]
3. (a) What is quarter wave plate? Deduce expression for its thickness
(b) Draw a ray diagram for extraordinary and ordinary rays before and after
passing through a quarter wave plate.
(c) At what wavelength, the given quarter wave plate of wavelength 600nm will
act as half wave plate.
4. (a) Explain the terms `Unit Cell', `Basis' and `Space lattice'.
(b) Obtain the relation between the edge of the unit cell and atomic radius for
SC, BCC and FCC lattices.
(c) Chromium has BCC structure. Its atomic radius is 0.1249 nm. Calculate the
free volume per unit cell. [3+8+4]
5. (a) What are Miller indices? How are they obtained?
(b) Deduce the expression for the interplanar distance in terms of Miller indices
for a cubic system.
(c) Obtain Miller indices of a plane which intercepts at a, b/2 and 3c in simple
cubic unit cell. Draw a neat diagram showing the plane. [5+6+4]
6. (a) Distinguish between Spontaneous and Stimulated emissions.
(b) What is the reason for mono chromaticity of laser beam?
1 of 2
Code No: R10103/R10 Set No. 3
(c) Derive the expression for energy density of radiation in terms of Einstein
coecients. [5+3+7]
7. (a) De ne acceptance angle and derive expression for it in terms of fractional
index change.
(b) Write notes on scattering and Absorption loss in the optical bers. [11+4]
8. (a) What is ultrasonic testing and explain the basic principle?
(b) What are the properties of Ultrasonic Waves? [10+5]
?????
2 of 2
FirstRanker.com - FirstRanker's Choice
Code No: R10103/R10 Set No. 1
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a)Explain the interference of light due to thin lms.
(b)What is Coherent Length? Explain [12+3]
2. (a) Explain Rayleigh's criterion of resolution.
(b) Write a note on resolving power of a grating. [9+6]
3. (a) Discuss the various methods by which polarized light can be produced?
(b) The refractive index of glass is 1.5. Calculate the Brewster's angle for it. Also
calculate the angle of refraction. [9+6]
4. (a) What is Primitive cell? How does it di ers from unit cell?
(b) Illustrate the SC, BCC and FCC crystal structures.
(c) Write di erent crystal systems [3+9+3]
5. (a) Explain the principle, procedure and advantage of Debye-Scherrer method of
X-ray di raction.
(b) Obtain Miller indices of a plane which intercepts at a, b/2 and 3c in simple
cubic unit cell. Draw a neat diagram showing the plane. [11+4]
6. (a) What are important characteristics of Laser?
(b) What are the Scienti c, Industrial and Medical applications of Laser?
(c) What is the role of optical cavity and active medium in a Laser [4+6+5]
7. (a) What are the conditions to produce total internal re ection in optical ber.
(b) Describe structure of di erent types of Optical bers with ray paths.
(c) Calculate the angle of acceptance of a given optical ber, if the refractive
indices of the core and the cladding are 1.563 and 1.498 respectively. [3+8+4]
8. (a) Explain the working of Ultrasonic aw detector.
(b) Explain three di erent and most common types of scans used in Ultrasonic
inspection. [6+9]
?????
1 of 1
Code No: R10103/R10 Set No. 2
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a) State and explain Superposition principle?
(b) With ray diagram discuss the theory of thin lms and derive the condition for
constructive and destructive interference in the case of re ected system.
[3+12]
2. (a) What is meant by di raction of light? Explain.
(b) What is Rayleigh's Criterion for resolving power?
(c) De ne Resolving power of a grating. Derive the expression for Resolving power
of a grating based on Rayleigh's Criterion. [3+6+6]
3. (a) What do you mean by Polarisation?
(b) Distinguish between Polarised and Unpolarised lights.
(c) Discuss how the Circular and Elliptical Polarised lights can be produced?
[4+5+6]
4. (a) Explain the terms:
(i) Space Lattice (ii) Basis (iii) Unit Cell (iv) Primitive Cell
(b) Write notes on Bravias lattices
(c) Lithium crystallizes in BCC structure. Calculate the lattice constant, given
that atomic weight and density of Lithium are 6.94 and 530 kg/m
3
respectively.
[8+3+4]
5. (a) Derive Bragg's law and obtain the limiting condition for it.
(b) Obtain Miller indices of a plane which intercepts at a, b/2 and 3c in simple
cubic unit cell. Draw a neat diagram showing the plane. [11+4]
6. (a) Explain the construction and working of Ruby laser.
(b) What are the di erences between Homo junction Laser and Hetero junction
Laser? [10+5]
1 of 2
Code No: R10103/R10 Set No. 2
7. (a) Explain how the optical bers are classi ed.
(b) Explain the applications of optical bers
(c) An optical ber has a numerical aperture of 0.2 and a cladding refractive index
of 1.59. Find the acceptance angle for the ber in water which has a refractive
index of 1.33. [6+5+4]
8. (a) Explain the basic principle of ultrasonic testing.
(b) What are the advantages and limitations of ultrasonic testing. [5+10]
?????
2 of 2
Code No: R10103/R10 Set No. 3
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a) Discuss the theory of Newton's rings with relevant diagram.
(b) Derive the expression for the diameters of dark and bright rings. [6+8]
2. (a) Describe Fraunhofer di raction due to single slit.
(b) Describe the action of plane transmission grating in producing di raction spec-
trum.
(c) Show that the grating with 500 lines/cm cannot give a spectrum in the 4
th
order for the light of wavelength 5890. [6+5+4]
3. (a) What is quarter wave plate? Deduce expression for its thickness
(b) Draw a ray diagram for extraordinary and ordinary rays before and after
passing through a quarter wave plate.
(c) At what wavelength, the given quarter wave plate of wavelength 600nm will
act as half wave plate.
4. (a) Explain the terms `Unit Cell', `Basis' and `Space lattice'.
(b) Obtain the relation between the edge of the unit cell and atomic radius for
SC, BCC and FCC lattices.
(c) Chromium has BCC structure. Its atomic radius is 0.1249 nm. Calculate the
free volume per unit cell. [3+8+4]
5. (a) What are Miller indices? How are they obtained?
(b) Deduce the expression for the interplanar distance in terms of Miller indices
for a cubic system.
(c) Obtain Miller indices of a plane which intercepts at a, b/2 and 3c in simple
cubic unit cell. Draw a neat diagram showing the plane. [5+6+4]
6. (a) Distinguish between Spontaneous and Stimulated emissions.
(b) What is the reason for mono chromaticity of laser beam?
1 of 2
Code No: R10103/R10 Set No. 3
(c) Derive the expression for energy density of radiation in terms of Einstein
coecients. [5+3+7]
7. (a) De ne acceptance angle and derive expression for it in terms of fractional
index change.
(b) Write notes on scattering and Absorption loss in the optical bers. [11+4]
8. (a) What is ultrasonic testing and explain the basic principle?
(b) What are the properties of Ultrasonic Waves? [10+5]
?????
2 of 2
Code No: R10103/R10 Set No. 4
I B.Tech I Semester Supplementary Examinations, Feb/Mar 2014
ENGINEERING PHYSICS-I
( Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Bio-Technology, Automobile Engineering, Mining and
Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a) Discuss the theory of Newton's rings with relevant diagram.
(b) Derive the expression for the diameters of dark and bright rings. [6+8]
2. (a) What are the types of di ractions and give the di erences between them.
(b) Obtain the condition for primary maxima in Fraunhofer di raction due to
single slit and derive an expression for width of the central maxima. [5+10]
3. (a) What is meant by Double Refraction?
(b) Write notes on Optic axis and its characteristics.
(c) Discuss the construction and action of Nicol prism. [2+5+8]
4. (a) De ne Packing fraction and Show that FCC crystals are closely packed than
BCC crystals.
(b) Explain the crystal structures of BCC and FCC crystals. [9+6]
5. (a) Explain how the crystal structure will be determined by Laue method?
(b) Derive the expression for the Bragg's law. [7+8]
6. (a) Derive Einstein coecients and explain their signi cance?
(b) Describe the construction and working of a semiconductor Laser? [7+8]
7. (a) Describe the construction of an optical ber and give typical dimensions of
various parts.
(b) Write notes on Attenuation losses in optical ber communication.
(c) Calculate the angle of acceptance of a given optical ber, if the refractive
indices of the core and cladding 1.563 and 1.498 respectively. [8+3+4]
8. (a) Discuss various nondestructive testing systems which are commonly adopted
in industries using ultrasonics.
(b) Explain di erent types of scans in Ultrasonic testing. [7+8]
?????
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This post was last modified on 03 December 2019