Download OU B-Tech First Year 2015 June 9004 Faculty Of Engineering And Informatics Question Paper

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5 Superconductivity
Code No. 9004 / 0
FACULTY OF ENGINEERING AND INFORMATICS
B.E. I ? Year (Old) Examination, May / June 2016
Subject Engineering Physics

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(Common to All Branches)
Time : 3 hours Max. Marks : 75
Note: Answer all questions from Part-A. Answer any FIVE questions from Part-B.
PART ? A (25 Marks)
1 Explain the basic principle of halography.

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,;
2 A monochromatic light of wavelen9th 6500A
?
falls normally on a g. The first
order spectrum is observed at 15' from the mean position. palpu ateS.:the grating

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element.
hd Fermi-Dirac
(
3
)

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4 Which of the following is not a Maxwell equation. (2)
a) V XII =
aD
b) V B = 0
at

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5 The distance between the adjacent planeS'Ota sit of parallel planes of indices
(h, k I) for simple cubic crystal is (2)
6 What is Meissner effect? Explain its ikpOince. (2)
(2)
(3)

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3 Distinguish between Maxwell-Boltzmann, Bose-Ein
statistics.
d) V XE = ?
aB
at

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(
3
)
a) Miller indices
b) Photovoltaic effect

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c) BCS theory
d) Total internal reflecticn
e) Thin films
f) Planck's radiation
g) Polarization

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A) 1 d, d, 3 a, 4 a, 5?c
B) I ? d, 3 ? g, 4 c, 5 d
C) f, 3 a, 4? b, 5? c
D) f, 3 ? c, 4 ? d, 5 - f
8 What ko Type-I and Type-II superconductors?

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9 What is X-ray Fluorescence? Explain.
10 The hall coefficient (RH) of a semiconductor is 3.22 x 10
-4
m
3

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C
71
. Its resistivity is
9 x 10
-3

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0 m. Determine the type of semiconductor and its charge concentration.
PART ? B (50 Marks)
11 a) Distinguish between interference and diffraction.
b) Explain the method to determine the wavelength of light used by ciffraction
grating.

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12 a) Define numerical aperture, acceptance angle and obtain an expression for
numerical aperture.
b) Distinguish between step index and graded index fibres.
(
3

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)
(2)
(3)
..2
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7 Match the following :
1 Fibre optics
2 Statistical Mechanics
3 Crystallography
4 Solar cells

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5 Superconductivity
Code No. 9004 / 0
FACULTY OF ENGINEERING AND INFORMATICS
B.E. I ? Year (Old) Examination, May / June 2016
Subject Engineering Physics

--- Content provided by⁠ FirstRanker.com ---

(Common to All Branches)
Time : 3 hours Max. Marks : 75
Note: Answer all questions from Part-A. Answer any FIVE questions from Part-B.
PART ? A (25 Marks)
1 Explain the basic principle of halography.

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,;
2 A monochromatic light of wavelen9th 6500A
?
falls normally on a g. The first
order spectrum is observed at 15' from the mean position. palpu ateS.:the grating

--- Content provided by‍ FirstRanker.com ---

element.
hd Fermi-Dirac
(
3
)

--- Content provided by‌ FirstRanker.com ---

4 Which of the following is not a Maxwell equation. (2)
a) V XII =
aD
b) V B = 0
at

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5 The distance between the adjacent planeS'Ota sit of parallel planes of indices
(h, k I) for simple cubic crystal is (2)
6 What is Meissner effect? Explain its ikpOince. (2)
(2)
(3)

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3 Distinguish between Maxwell-Boltzmann, Bose-Ein
statistics.
d) V XE = ?
aB
at

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(
3
)
a) Miller indices
b) Photovoltaic effect

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c) BCS theory
d) Total internal reflecticn
e) Thin films
f) Planck's radiation
g) Polarization

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A) 1 d, d, 3 a, 4 a, 5?c
B) I ? d, 3 ? g, 4 c, 5 d
C) f, 3 a, 4? b, 5? c
D) f, 3 ? c, 4 ? d, 5 - f
8 What ko Type-I and Type-II superconductors?

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9 What is X-ray Fluorescence? Explain.
10 The hall coefficient (RH) of a semiconductor is 3.22 x 10
-4
m
3

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C
71
. Its resistivity is
9 x 10
-3

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0 m. Determine the type of semiconductor and its charge concentration.
PART ? B (50 Marks)
11 a) Distinguish between interference and diffraction.
b) Explain the method to determine the wavelength of light used by ciffraction
grating.

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12 a) Define numerical aperture, acceptance angle and obtain an expression for
numerical aperture.
b) Distinguish between step index and graded index fibres.
(
3

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)
(2)
(3)
..2
Code No. 9004 0

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..2..
13 Describe in detail the theory of a particle in an infinite square well potential.
14 What is Schottkey defect? Derive the expression for the concentration of
Schottkey defects in an ionic crystal.
15 a) Based on conductivity, classify the solids into conductors, semiconductors

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and insulators.
b) What is thermistor and explain the working of a thermistor?
16 a) What are Ferritas? Explain their structure.
b) Discuss the Weiss theory of ferromagnetism.
17 a) Describe the CVD method for the preparation of thin fil

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b) Describe the principle and working of Scanning Electr Microscope (SEM).
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