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EndsemMay 20252019 patternFE

Engineering Physics SPPU Endsem Question Paper May 2025

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 2025
Max. marks
70
Time
2½ Hours
Semester
I/II
Paper code
[6401]-1902

Printed for: F.E.

Instructions to the candidates

  1. Question No. 1 is compulsory.
  2. Figures to the right indicate full marks.
  3. Assume suitable data if necessary.
  4. Use of electronic calculator is allowed.

Questions

  1. Q1

    1. Write correct option of given questions with answer (one mark each)

      [10]
    2. a)

      The matter waves would be associated with _______ moving with speed comparable to the speed of light. i) Electron ii) Proton iii) Neutron iv) All of the above

    3. b)

      De Broglie hypothesis is applicable for i) Matter particles ii) Electromagnetic waves iii) Mechanical waves iv) None of the above

    4. c)

      Heisenberg’s uncertainty principle is about the _______ of position and momentum of a particle. i) Difference ii) Addition iii) Multiplication iv) Division

    5. d)

      Which of the following represent correct ordering for band gap energy? i) Metal > Semiconductor > Insulator ii) Metal < Semiconductor < Insulator iii) Metal < Semiconductor > Insulator iv) Metal > Semiconductor < Insulator 2

    6. e)

      Hall effect is true for i) Metals only ii) P-type semiconductors only iii) N type semiconductors iv) All of the above

      Also asked:May 2024

    7. f)

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

    8. g)

      The magnetism produced in an atom is because of i) Orbital motion of electron ii) Spin motion of electron iii) Spin motion of nucleus iv) Combined effect of a, b, c

    9. h)

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

  2. Q2

    1. a)

      Derive the expression for the energy of a particle enclosed in an infinite potential well.

      [6]
    2. b)

      State and explain Heisenberg’s uncertainty principle.

      Also asked:Nov 2023

      [5]
    3. c)

      Calculate wavelength of matter waves associated with an electron having energy 10eV.

      [4]

  3. Q3

    1. a)

      Derive schrodinger’s time independent equation.

      Also asked:Feb 2026 ·Nov 2025 ·Apr 2025 ·Nov 2024 ·Nov 2024 ·May 2024 ·Nov 2023 ·May 2023 ·May 2022

      [6]
    2. b)

      State and explain de Broglie hypothesis of matter waves. Write any two properties of matter waves.

      Also asked:May 2024

      [5]
    3. c)

      Calculate minimum energy associated with an electron enclosed in a potential well of length 2AV. 3

      [4]

  4. Q4

    1. a)

      With a suitable diagram. Explain Hall effect. Derive expression for Hall Voltage.

      Also asked:Feb 2026 ·Nov 2025 ·Apr 2025 ·Nov 2024 ·May 2024 ·Nov 2023 ·May 2023 ·May 2022

      [6]
    2. b)

      Define efficiency of solar cell. State any four measures to improve efficiency of solar cells.

      [5]
    3. c)

      Calculate number of acceptor atoms that are required to be added to an intrinsic silicon to achieve a resistivity of 10 ohm-cm. [Given - mobility of holes 500cm 2 /V.S]

      [4]

  5. Q5

    1. a)

      Derive the expression for conductivity of intrinsic and extrinsic semiconductors.

      Also asked:Nov 2025 ·May 2022

      [6]
    2. b)

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

      [5]
    3. c)

      A strip of copper of thickness 1.5×10 –4 m is placed in a magnetic field of 1T acting along its thickness; A current of 10A is setup along its length. The voltage developed across width is 5  V. Calculate concentration of charge carriers.

      [4]

  6. Q6

    1. a)

      Explain how the information is recorded and retrieved (read) in magnetic storage devices.

      [6]
    2. b)

      Explain in brief : i) Magnetic field strength (H) ii) Magnetization (M) Write relation between them.

    3. c)

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

      [4]

  7. Q7

    1. a)

      State and explain meissner effect. Show that super conductors are perfect diamagnetic.

      [6]
    2. b)

      Define critical magnetic field. Differentiate between type I & type II super conductors. (Any two points).

      [5]
    3. c)

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

      [4]

  8. Q8

    1. a)

      Explain with a suitable diagram, how ultrasonic testing technique is used for flow defection.

      [6]
    2. b)

      What is Non Destructive Testing (NDT)? Write advantages of Non Destructive Testing over destructive testing (any four).

      [5]
    3. c)

      Explain applications of nanotechnology in medicine (targeted drug delivery).

      Also asked:Nov 2025

      [4]

  9. Q9

    1. a)

      Explain optical and electrical properties of nano particles.

      [6]
    2. b)

      What is nanotechnology? Explain why properties of nanoparticles are different than corresponding bulk materials.

      [5]
    3. c)

      A block of metal has a thickness of 0.5 cm. An ultrasonic pulse of velocity 5000 m/s is sent through the top of the block. After what time echo would be received from the bottom of the block. At some other location in the block. Echo is received from. Flow after 1.5  s. Calculate location of the flow. 

      [4]