Engineering Physics SPPU Endsem Question Paper May 2023
All 9 questions from this SPPU endsem paper, as printed. Read them here or open the PDF.
- Subject code
- 107002
- Pattern
- 2019 pattern
- Exam
- Endsem
- Session
- May 2023
- Max. marks
- 70
- Time
- 2½ Hours
- Semester
- II
- Paper code
- [6001]-4002
Printed for: F.E.
Instructions to the candidates
- Question No. 1 is compulsory.
- Q.No. 2 to Q.No. 9 carry equal marks.
- Figures to the right indicate full marks.
- Assume suitable data, if necessary.
- Use of electronic calculator is allowed. Physical Constants :
- Mass of electron m e = 9.1 × 10 –31 kg
- Charge on electron e = 1.6 × 10 –19 c
- Planek’s constant h = 6.63 × 10 –34 J-sec.
Questions
Q1
- [10]
This part has equations that don’t show as text. Open the PDF to read it.
- a)
Photons
- b)
Matter particles
- c)
Either matter particles or photons
- d)
Both matter particles and photons ii) According to Heisenberg’s uncertainty principle -
- a)
This part has equations that don’t show as text. Open the PDF to read it.
- c)
This part has equations that don’t show as text. Open the PDF to read it.
- a)
Kinetic energy b) Potential energy
- c)
Total energy d) Wave function iv) Fermi level for a metal or conductor is highest energy level occupied by electrons at ______.
- a)
This part has equations that don’t show as text. Open the PDF to read it.
- c)
This part has equations that don’t show as text. Open the PDF to read it.
- a)
Metals only
- b)
Semiconductors only
- c)
For N-type semiconductors only
- d)
Both metal and semiconductors vi) The magnetic materials exhibit the property of magnetisation because of ______.
- a)
Orbital motion of electrons b) Spin of electrons
- c)
Spin of nucleus d) All of the above vii) A superconductor is a perfect ______ material.
- a)
Insulator b) Semiconductor
- c)
Dielectric d) Diamagnetic viii) Tunneling of Cooper pairs through an insulating layer between two superconductors is called ______.
- a)
Josephson effect b) Onnes effect
- c)
Meissner effect d) Kerr effect ix) With increase in size of nanoparticles its hardness ______.
- a)
Increases b) Decreases
- c)
Remains same d) Difficult to predict x) In Non destructive testing (NDT) the physical and chemical properties of sample ______.
- a)
Changes b) Do not changes
- c)
Depends on temp d) Does not depend on temp 3
Q2
- a)[6]
Deduce 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 2022
- b)[5]
State and explain Heisenberg’s uncertainty principle using the except of small and large wave packet.
- c)[4]
Calculate the energy difference between the ground state and first excited state of an electron in the rigid box of length 1A º .
Also asked:Nov 2023
OR- a)
Q3
- a)[6]
State De Broglie’s hypothesis. Derive an expression for De Broglies wavelength of an elctron accelerated by a potential difference of ‘ V’.
- b)[5]
Define wave function. Write the conditions of well behaved wave function.
Also asked:May 2022
- c)[4]
The uncertainty in the location of a particle is equal to its De Broglie wavelength. Show that the uncertainty in the velocity to a particle is equal to the particle velocity itself.
- a)
Q4
- a)[6]
With the help of bond theory of solids explain the classification of solids into conductors, semiconductors and insulators.
- b)[5]
What are solar cells? Draw I-V characteristics of solar cells and define the terms i) Short circuit current and ii) Open circuit voltage.
Also asked:Nov 2024
- c)[4]
This part has equations that don’t show as text. Open the PDF to read it.
OR- a)
Q5
- a)[6]
Explain the Hall effect with a neat labelled diagram. Derive an expression for Hall voltage.
Also asked:Feb 2026 ·Nov 2025 ·May 2025 ·Apr 2025 ·Nov 2024 ·May 2024 ·Nov 2023 ·May 2022
- b)[5]
Define Fermi level in semiconductors. For a P-N junction diode draw energy band picture showing the position of Fermi level in i) Zero bias and ii) Forward bias.
- c)[4]
This part has equations that don’t show as text. Open the PDF to read it.
- a)
Q6
- a)[6]
Differentiate between diamagnetism, paramagnetism and ferromagnetism. (Any two points)
Also asked:May 2022
- b)[5]
Define : i) Magnetic permeability and ii) Magnetic susceptibility Obtain the relation between them.
Also asked:Nov 2025
- c)[4]
This part has equations that don’t show as text. Open the PDF to read it.
OR- a)
Q7
- a)[6]
Explain artificial magnetic field in brief. Distinguish between Type-I & Type II superconductors. (Any 3 points).
- b)[5]
Explain Melssner effect in brief. Show that superconductors are characterised by perfect diamagnetism.
- c)[4]
This part has equations that don’t show as text. Open the PDF to read it.
OR- a)
Q8
- a)[6]
What is echosounding technique? Using this technique explain non destructive testing for the measurement of thickness of a metal sheet using ultrasonic waves.
Also asked:May 2022
- b)[5]
What is Non Destructive Testing (NDT)? Distinguish between Non Destructive Testing and Destructive Testing. (Any two points)
- c)[4]
Write any four applications of nanotechnology in the field of automobile. Explain any one in brief.
Also asked:May 2024
OR- a)
Q9
- a)[6]
Explain optical and mechanical properties of nanoparticles.
- b)[5]
What are nanoparticles? What is the effect of quantum confinement on the properties of nanoparticles?
- c)[4]
This part has equations that don’t show as text. Open the PDF to read it.
- a)