Download JNTUK B-Tech 2020 R19 IT 1203 Applied Physics Model Question Paper

Download JNTUK (Jawaharlal Nehru Technological University Kakinada (JNTU kakinada)) B-Tech 2020 R19 IT 1203 Applied Physics Model Previous Question Paper

13

[B19 BS 1203]

I B. Tech II Semester (R19) Regular Examinations
APPLIED PHYSICS
(Electrical & Electronics Engineering)
MODEL QUESTION PAPER
TIME: 3 Hrs. Max. Marks: 75 M
Answer ONE Question from EACH UNIT
All questions carry equal marks
*****
CO KL M
UNIT - I
1. a). Explain the principle of Superposition and discuss the conditions for maxima
and minima of intensity.
1 2 8
b). How the Newton?s Rings are formed and deduce an expression for the wave
length of light used.
1 2 7
OR
2. a). Distinguish the different diffractions of light. 1 2 5
b). Give qualitative and quantitative analysis of Fraun hoper diffraction at a single
slit
1 3 10
UNIT - II
3. a). Define polarization and explain the different types of polarization possible in
a dielectric
2 2 7
b). Deduce the Claussius Mosotti & equation and its significance in dielectrics. 2 3 8
OR
4. a). Define Magnetic susceptibility and give a classification of magnetic materials. 2 1 5
b). Describe the Hysteresis exhibited by Ferromagnetic materials and explain its
using a Suitable theory
CO2-K3(10M)
2 3 10
UNIT - III
5. a). Give the selection procedure of the active medium of laser device. 4 2 7
b). With suitable diagrams, discuss the working principle, design and working of
He ? Ne laser system
4 2 8
OR
6. a). What is the significance of Numerical Aperture of an optical fiber and obtain
an expression for it.
4 2 8
b). Discuss the sensor applications of optical fiber. 4 3 7

UNIT - IV
7. a). What is an intrinsic semiconductor and obtain an expression for the density of
coiners.
3 2 9
b). Distinguish between direct and indirect band gap semiconductors and mention
their applications.
3 3 6
OR
8. a). Discuss the Hall Effect in detail and explain its significance. 3 3 9
b). Distinguish between drift and diffusion current in semiconductors. 3 2 6
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13

[B19 BS 1203]

I B. Tech II Semester (R19) Regular Examinations
APPLIED PHYSICS
(Electrical & Electronics Engineering)
MODEL QUESTION PAPER
TIME: 3 Hrs. Max. Marks: 75 M
Answer ONE Question from EACH UNIT
All questions carry equal marks
*****
CO KL M
UNIT - I
1. a). Explain the principle of Superposition and discuss the conditions for maxima
and minima of intensity.
1 2 8
b). How the Newton?s Rings are formed and deduce an expression for the wave
length of light used.
1 2 7
OR
2. a). Distinguish the different diffractions of light. 1 2 5
b). Give qualitative and quantitative analysis of Fraun hoper diffraction at a single
slit
1 3 10
UNIT - II
3. a). Define polarization and explain the different types of polarization possible in
a dielectric
2 2 7
b). Deduce the Claussius Mosotti & equation and its significance in dielectrics. 2 3 8
OR
4. a). Define Magnetic susceptibility and give a classification of magnetic materials. 2 1 5
b). Describe the Hysteresis exhibited by Ferromagnetic materials and explain its
using a Suitable theory
CO2-K3(10M)
2 3 10
UNIT - III
5. a). Give the selection procedure of the active medium of laser device. 4 2 7
b). With suitable diagrams, discuss the working principle, design and working of
He ? Ne laser system
4 2 8
OR
6. a). What is the significance of Numerical Aperture of an optical fiber and obtain
an expression for it.
4 2 8
b). Discuss the sensor applications of optical fiber. 4 3 7

UNIT - IV
7. a). What is an intrinsic semiconductor and obtain an expression for the density of
coiners.
3 2 9
b). Distinguish between direct and indirect band gap semiconductors and mention
their applications.
3 3 6
OR
8. a). Discuss the Hall Effect in detail and explain its significance. 3 3 9
b). Distinguish between drift and diffusion current in semiconductors. 3 2 6
14


UNIT - V
9. a). Explaining Magnetostriction effect, describe how the ultrasonics can be
produced.
4 3 9
b). Mention the application of ultrasonics. 4 1 6
OR
10. a). How the nano materials can be produced by sol ? gel method. 5 2 7
b). Write abt Carbon Nanotubes 5 2 4
C). Discuss some important applications of nanomaterials. 5 1 4






















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