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EndsemMay 20222019 patternFE

Engineering Physics SPPU Endsem Question Paper May 2022

All 9 questions from this SPPU endsem paper, as printed. Read them here or open the PDF.

Open the PDFMost repeated Engineering Physics questions
Subject code
107002
Pattern
2019 pattern
Exam
Endsem
Session
May 2022
Max. marks
70
Time
2½ Hours
Paper code
[5868]-102

Printed for: F.E. (Semester - II)

Instructions to the candidates

  1. Question No. 1 is compulsory.
  2. Neat diagrams must be drawn wherever necessary.
  3. Figures to the right indicates full marks.
  4. Use of logarithmic tables slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed.
  5. Assume suitable data, if necessary. Physical Constants :-
  6. Planck's constant h = 6.63 × 10 –34 J–S
  7. Mass of electron m e = 9.1 × 10 –31 kg
  8. Charge on electron e = 1.6 × 10 –19 C

Questions

  1. Q1

    1. Write the correct option with answer for the following : i) The wavelength λ associated with a particle of mass m moving with velocity v is given by

      [10]
    2. a)

      This part has equations that don’t show as text. Open the PDF to read it.

    3. c)

      This part has equations that don’t show as text. Open the PDF to read it.

    4. a)

      Heisenberg b) Bohr

    5. c)

      De Broglie d) Schrodinger iii) In metals the band gap energy / forbidden energy gap is

    6. a)

      This part has equations that don’t show as text. Open the PDF to read it.

    7. c)

      This part has equations that don’t show as text. Open the PDF to read it.

    8. a)

      Photoelectric effect b) Photoluminescence effect

    9. c)

      Photovoltaic effect d) Photocombustion effect v) The relative permeability can be expressed by

    10. a)

      This part has equations that don’t show as text. Open the PDF to read it.

    11. c)

      This part has equations that don’t show as text. Open the PDF to read it.

    12. a)

      Capacitance b) Conductivity

    13. c)

      Inductance d) Resistance vii) Ultrasonic waves have frequency

    14. a)

      This part has equations that don’t show as text. Open the PDF to read it.

    15. c)

      Greater than 20 kH z d) None of the above viii) In nanomaterials which of the following statement is correct.

    16. a)

      Surface to volume ratio is very small

    17. b)

      Surface to volume ratio is large

    18. c)

      Surface to volume ratio is 1 (unity)

    19. d)

      None of the above

  2. Q2

    1. a)

      Derive an equation for energy of a particle enclosed in 1D rigid box or in an infinite potential well.

      Also asked:Feb 2026 ·Nov 2025 ·Apr 2025 ·May 2024 ·Nov 2023

      [6]
    2. b)

      What is wave function Ψ ? Write mathematical conditions of well behaved wave function.

      Also asked:May 2023

      [5]
    3. c)

      An electron is accelerated by a potential difference of 10 kV. What is De Broglie wavelength associated with this electron.

      Also asked:Nov 2024 ·Nov 2023 ·May 2023

      [4]

  3. Q3

    1. a)

      Starting from De Broglie hypothesis, derive Schrodinger's time independent wave equation.

      Also asked:Feb 2026 ·Nov 2025 ·May 2025 ·Apr 2025 ·Nov 2024 ·Nov 2024 ·May 2024 ·Nov 2023 ·May 2023

      [6]
    2. b)

      State Heisenberg's Uncertainly principle. Explain it using the concept of narrow and broad wave packet.

      Also asked:May 2024

      [5]
    3. c)

      Lowest energy of an electron in a potential well is 38 eV. Calculate the width of well.

      Also asked:Feb 2026 ·Apr 2025 ·May 2024

      [4]

  4. Q4

    1. a)

      Derive an expression for conductivity of intrinsic, and extrinsic semiconductors.

      Also asked:Nov 2025 ·May 2025

      [6]
    2. b)

      What is fermi level in a semiconductor? With the neat labelled diagram, draw the position of fermi level in N Type & P Type semiconductor at 0º K.

      [5]
    3. c)

      This part has equations that don’t show as text. Open the PDF to read it.

      [5]

  5. Q5

    1. a)

      State Hall effect. Derive an equation of Hall voltage.

      Also asked:Feb 2026 ·Nov 2025 ·May 2025 ·Apr 2025 ·Nov 2024 ·May 2024 ·Nov 2023 ·May 2023

      [6]
    2. b)

      Define fermi level in conductors and semiconductors. Draw the position of fermi level in intrinsic, N - type & P - type semiconductors.

      [5]
    3. c)

      Calculate the number of acceptors to be added to germanium sample to obtain the resistivity of 10 Ω m.

      [4]

  6. Q6

    1. a)

      Explain the following terms in superconductivity : i) Critical Magnetic field. ii) Meissner effect

      [6]
    2. b)

      This part has equations that don’t show as text. Open the PDF to read it.

      [5]
    3. c)

      Explain DC & AC Josephson effect in brief.

      Also asked:Nov 2023

      [4]

  7. Q7

    1. a)

      Differentiate between Diamagnetism, paramagnetism and ferromagnetism. (Any Three points)

      Also asked:May 2023

      [6]
    2. b)

      What is superconductivity? Distinguish between Type I and Type II superconductors. (any four points)

      Also asked:Nov 2025

      [5]
    3. c)

      The transition temperature for lead is 7.2 K. However at 5K it losses the superconductivity property if subjected to magnetic field of 3.3 × 10 4 A/m. Find the maximum value of magnetic field which will allow the metal to retain its superconductivity at 0K.

      Also asked:Nov 2024

      [4]

  8. Q8

    1. a)

      What is echo sounding technique? Using this technique explain non destructive testing for the measurement of thickness of metal sheet using ultrasonic waves.

      Also asked:May 2023

      [6]
    2. b)

      What are nanoparticles? What is nanotechnology? Explain the optical property of nanoparticle.

      [5]
    3. c)

      Distinguish between Destructive and Non Destructive testing (any two points)

      Also asked:Nov 2025 ·Nov 2024 ·May 2024 ·Nov 2023 ·May 2023

      [4]

  9. Q9

    1. a)

      What are applications of nanoparticles? Explain any two applications of nanoparticles in brief.

      [6]
    2. b)

      Explain in brief Acoustic Emission Technique of NDT and its application.

      Also asked:Nov 2025

      [5]
    3. c)

      This part has equations that don’t show as text. Open the PDF to read it.

      [4]