JNTU Kakinada B-Pharm 2-1 last 10 year question papers 2010-2020 -All regulation
Firstranker's choice
Code No: R10103 / R10
--- Content provided by FirstRanker.com ---
Set No. 1
I B.Tech I Semester Regular/Supplementary Examinations January 2012
ENGINEERING PHYSICS - I
(Common to all branches)
Time: 3 hours
--- Content provided by FirstRanker.com ---
Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
- (a) What is interference of light waves? What are the conditions necessary for obtaining interference fringes?
(b) Describe Young's double slit experiment and obtain an expression for fringe width.--- Content provided by FirstRanker.com ---
(c) Two narrow and parallel slits 0.08 cm apart are illuminated by light of frequency 8x 1011 kHz. It is desired to have a fringe width of 6x10-5 m. Where the screen should be placed from the slits? [5M + 6M + 4M] - (a) What are the differences between interference and diffraction.
(b) Describe the Fraunhofer diffraction pattern obtained with single slit.
(c) A plane transmission grating having 4250 lines per cm is illuminated with sodium light normally. In second order spectrum the spectral lines are deviated by 30°. Find the wavelength of the spectral line. [4M + 7M + 4M] - (a) What are the quarter and half wave plates?
--- Content provided by FirstRanker.com ---
(b) Derive the expressions for thickness of quarter and half wave plates.
(c) Plane polarized light passes through a quartz plate with its axis parallel to the face. Calculate the thickness of the plate so that the emergent light may be plane polarized. For quartz µe = 1.553, µ? = 1.542; ? = 5.5x10-5 cm. [3M + 8M + 4M] - (a) Define crystal lattice, unit cell, lattice parameter and coordination number.
(b) Describe the FCC crystal structure and obtain the expression for its packing factor.
(c) Iron has BCC structure below 910 °C and is FCC structure above 910 °C. The atomic radius of an atom is the same in both the cases. Calculate the ratio of the packing densities of bulk iron in the two structures at below 910 °C. [4M + 7M + 4M] - (a) Define Miller indices for designating (i) direction, (ii) plane, (iii) family of directions and (iv) family of planes.
(b) Sketch the (102) and (011) planes in a cubic unit cell.
(c) Derive an expression for inter planar distance between parallel planes (h k l). [4M + 4M + 7M] - (a) What are the characteristics of a laser beam?
(b) Describe the construction and working of He-Ne laser. [5M + 10M] - (a) What is the principle behind the functioning of an optical fiber?
(b) Discuss various factors contributing to attenuation in optical fibers.
(c) The optical power launched into an optical fiber is 1.5 mW. The fiber has attenuation of 0.5 db/km. If the power output is 2 µW, calculate the fiber length. [3M + 8M + 4M] - (a) Explain different types of scans in NDT.
(b) Explain various applications of ultrasonic testing. [8M + 7M]
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
Firstranker's choice
Code No: R10103 / R10
Set No. 2
I B.Tech I Semester Regular/Supplementary Examinations January 2012
--- Content provided by FirstRanker.com ---
ENGINEERING PHYSICS - I
(Common to all branches)
Time: 3 hours
Max Marks: 75
Answer any FIVE Questions
--- Content provided by FirstRanker.com ---
All Questions carry equal marks
- (a) Two independent non-coherent sources of light cannot produce an interference pattern. Why?
(b) With ray diagram discuss the theory of thin films and derive the condition for constructive and destructive interference in the case of reflected system.
(c) A parallel beam of light ( ? = 5890x10-8 m) is incident on a thin glass plate (µ = 1.5 ) such that the angle of refraction into the plate is 60°. Calculate the smallest thickness of plate which would appear dark by reflection. [3M + 8M + 4M] - (a) What are the types of diffraction and give the differences between them.
--- Content provided by FirstRanker.com ---
(b) Obtain the condition for primary and secondary maxima in Fraunhofer diffraction due to single slit and derive an expression for width of the central maxima. [6M + 9M] - (a) What are the quarter and half wave plates?
(b) Derive the expressions for thickness of quarter and half wave plates.
(c) Plane polarized light passes through a quartz plate with its axis parallel to the face. Calculate the thickness of the plate so that the emergent light may be plane polarized. For quartz µe = 1.553, µ? = 1.542; ? = 5.5x10-5 cm. [3M + 8M + 4M] - (a) Explain the unit cell and lattice parameters. What is primitive cell and how does it differ from unit cell.
--- Content provided by FirstRanker.com ---
(b) Describe the BCC crystal structure and obtain the expression for its packing factor.
(c) Iron has BCC structure below 910 °C and is FCC structure above 910 °C. The atomic radius of an atom is the same in both the cases. Calculate the ratio of the packing densities of bulk iron in the two structures at below 910 °C. [4M + 7M + 4M] - (a) Sketch the (111) and (011) planes in a cubic unit cell.
(b) State and derive Bragg's law.
(c) How do distinguish between the simple cubic, BCC and FCC using powder X-ray diffraction data? [4M + 5M + 6M] - (a) Describe the various methods of pumping lasers with suitable examples.
(b) Describe the construction and working of semiconductor laser. [5M + 10M] - (a) Define acceptance angle and numerical aperture. Derive the expressions for both of them.
(b) Calculate the number of modes propagating in an optical fiber of core of 6µm diameter, (given that the indices are 1.45 and 1.44 for core and cladding respectively) while operated at a wavelength of 0.623 µm. [11M + 4M] - (a) Explain the basic principle of ultrasonic testing
--- Content provided by FirstRanker.com ---
(b) What are the advantages and limitations of ultrasonic testing. [5M + 10M]
--- Content provided by FirstRanker.com ---
Firstranker's choice
Code No: R10103 / R10
Set No. 3
--- Content provided by FirstRanker.com ---
I B.Tech I Semester Regular/Supplementary Examinations January 2012
ENGINEERING PHYSICS - I
(Common to all branches)
Time: 3 hours
Max Marks: 75
--- Content provided by FirstRanker.com ---
Answer any FIVE Questions
All Questions carry equal marks
- (a) What are Newton's rings? How are they formed? Why are they circular?
(b) Show that the radii of Newton's rings are in the ratio of the square roots of the natural numbers.
(c) In Newton's rings experiment, the diameters of the 4th and 12th dark rings are 0.40 cm and 0.70 cm respectively. Find the diameter of the 20th dark ring. [6M + 5M + 4M] - (a) What are the differences between interference and diffraction.
(b) Describe the Fraunhofer diffraction pattern obtained with single slit.
(c) A plane transmission grating having 4250 lines per cm is illuminated with sodium light normally. In second order spectrum the spectral lines are deviated by 30° are observed. Find the wavelength of the spectral line. [4M + 7M + 4M] - (a) Explain Brewster's law.
(b) Describe the construction and action of nicol prism.--- Content provided by FirstRanker.com ---
(c) Find the polarizing angle for a glass of refractive index 1.732. [4M + 7M + 4M] - (a) Explain the unit cell and lattice parameters. What is primitive cell and how does it differ from unit cell.
(b) Describe the BCC crystal structure and obtain the expression for its packing factor.
(c) Iron has BCC structure below 910 °C and is FCC structure above 910 °C. The atomic radius of an atom is the same in both the cases. Calculate the ratio of the packing densities of bulk iron in the two structures at below 910 °C. [4M + 7M + 4M] - (a) Define Miller indices for designating i) direction, ii) plane, iii) family of directions and iv) family of planes.
--- Content provided by FirstRanker.com ---
(b) Sketch the (102) and (011) planes in a cubic unit cell.
(c) Derive an expression for inter planar distance between parallel planes (h k l). [4M + 4M + 7M] - (a) Describe the (i) spontaneous emission, (ii) stimulated emission, (iii) absorption and (iv) population inversion.
(b) Obtain the relation between Einstein's coefficients. [8M + 7M] - (a) What is the principle behind the functioning of an optical fiber?
--- Content provided by FirstRanker.com ---
(b) Discuss various factors contributing to attenuation in optical fibers.
(c) The optical power launched into an optical fiber is 1.5 mW. The fiber has attenuation of 0.5 db/km. If the power output is 2 µW, calculate the fiber length. [3M + 8M + 4M] - (a) Discuss various non-destructive testing systems which are commonly adopted in industries using ultrasonics.
(b) Describe the ultrasonic flaw detector with suitable diagram. [10M + 5M]
--- Content provided by FirstRanker.com ---
Firstranker's choice
--- Content provided by FirstRanker.com ---
Code No: R10103 / R10
Set No. 4
I B.Tech I Semester Regular/Supplementary Examinations January 2012
ENGINEERING PHYSICS - I
--- Content provided by FirstRanker.com ---
(Common to all branches)
Time: 3 hours
Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
--- Content provided by FirstRanker.com ---
- (a) Explain why the centre of Newton's rings is dark in the reflected system.
(b) Describe how you would use Newton's rings to determine the wavelength of a monochromatic radiation and derive the relevant formula.
(c) In Neton's rings experiment, the diameter of the 10th ring changes from 1.40 cm to 1.27 cm when a liquid is introduced between the lens and the plate. Calculate the refractive index of the liquid. [3M + 8M + 4M] - (a) What are the types of diffraction and give the differences between them.
(b) Obtain the condition for primary and secondary maxima in Fraunhofer diffraction due to single slit and derive an expression for width of the central maxima. [6M + 9M] - (a) Explain Brewster's law.
(b) Describe the construction and action of nicol prism.
(c) Find the polarizing angle for a glass of refractive index 1.732. [4M + 7M + 4M] - (a) Define crystal lattice, unit cell, lattice parameter and coordination number.
(b) Describe the FCC crystal structure and obtain the expression for its packing factor.--- Content provided by FirstRanker.com ---
(c) Iron has BCC structure below 910 °C and is FCC structure above 910 °C. The atomic radius of an atom is the same in both the cases. Calculate the ratio of the packing densities of bulk iron in the two structures at below 910 °C. [4M + 7M + 4M] - (a) Sketch the (111) and (011) planes in a cubic unit cell.
(b) State and derive Bragg's law.
(c) How do distinguish between the simple cubic, BCC and FCC using powder X-ray diffraction data? [4M + 5M + 6M] - (a) Describe the (i) spontaneous emission, (ii) stimulated emission, (iii) absorption and (iv) population inversion.
--- Content provided by FirstRanker.com ---
(b) Obtain the relation between Einstein's coefficients. [8M + 7M] - (a) Define acceptance angle and numerical aperture. Derive the expressions for both of them.
(b) Calculate the number of modes propagating in an optical fiber of core of 6µm diameter, (given that the indices are 1.45 and 1.44 for core and cladding respectively) while operated at a wavelength of 0.623 µm. [11M + 4M] - (a) Explain different types of scans in NDT.
(b) Explain various applications of ultrasonic testing. [8M + 7M]
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
This download link is referred from the post: JNTU Kakinada B-Pharm 2-1 last 10 year question papers 2010-2020 -All regulation
--- Content provided by FirstRanker.com ---