Solved question paper for PHYSICS Dec-2019 (B-TECH 1st-2nd)

Solved Question Paper

Engineering physics Dec-2019

PTU • B-TECH • Civil Engineering • 1st-2nd • Dec-2019

engineering physics previous year question papers on BRpaper are organized for students of Punjab Technical University’s Bachelor of Technology program, 1st-2nd semester. This section makes it easier to browse subject-wise old question papers for engineering physics, so students can review how questions are typically framed in past exams and get a sense of the exam pattern. Many students search for engineering physics with answers pdf while preparing for exams, and this page is built to support exactly that kind of subject-wise browsing and revision. BRpaper is not the official website of Punjab Technical University or any institution, and it does not publish official notices or academic updates.

Solved Questions

Solved
  1. What is physical significance gradient of scalar field?
    Very Short Answer 2 Marks Dec-2019 • PTU B-TECH
  2. What does a Poynting vector measures?
    Very Short Answer 2 Marks Dec-2019 • PTU B-TECH
  3. What are Type-I and Type-II superconductors?
    Very Short Answer 2 Marks Dec-2019 • PTU B-TECH
  4. What is meant by Critical temperature in context of superconductors?
    Very Short Answer 2 Marks Dec-2019 • PTU B-TECH
  5. Why X-rays are suitable for studying crystal diffraction?
    Very Short Answer 2 Marks Dec-2019 • PTU B-TECH
  6. Write two properties of laser beam.
    Very Short Answer 2 Marks Dec-2019 • PTU B-TECH
  7. What is role of cladding in the optical fibre?
    Very Short Answer 2 Marks Dec-2019 • PTU B-TECH
  8. What is meant by the relativity of simultaneity?
    Very Short Answer 2 Marks Dec-2019 • PTU B-TECH
  9. Show that a particle which travels with speed of light must have a zero rest mass.
    Very Short Answer 2 Marks Dec-2019 • PTU B-TECH
  10. Define Matter Wave associated with material particle.
    Very Short Answer 2 Marks Dec-2019 • PTU B-TECH
  11. a) What is meant by polarization of a material? Mention the different mechanism of polarization in a dielectric.
    Short Answer 4 Marks Dec-2019 • PTU B-TECH
  12. Explain the hysteresis curve shown by ferromagnetic materials on basis of domain theory.
    Long Answer 4 Marks Dec-2019 • PTU B-TECH
  13. What is Meissner effect? Discuss the significance of this effect in context of superconductivity.
    Long Answer 4 Marks Dec-2019 • PTU B-TECH
  14. Define Atomic Packing fraction. Calculate the packing fraction for hexagonal close packed (hcp) unit cell?
    Long Answer 4 Marks Dec-2019 • PTU B-TECH
  15. Calculate the wavelength of an X-ray beam incident at 12° for the first order reflection from calcite crystal, if the grating constant of the crystal is 3.035 Å" (sin12° = 0.2079)
    Long Answer 4 Marks Dec-2019 • PTU B-TECH
  16. What is population inversion in laser and how it is achieved?
    Long Answer 4 Marks Dec-2019 • PTU B-TECH
  17. Describe the principle, construction and working of He-Ne laser.
    Long Answer 4 Marks Dec-2019 • PTU B-TECH
  18. Explain the basic principle used in optical fibre for transmission of light. What is acceptance angle for an optical fibre? How it is related to numerical aperture. Find out the numerical aperture and acceptance angle of an optical fibre, if the refractive indices for core and cladding are 1.6 and 1.5 respectively.
    Long Answer 4 Marks Dec-2019 • PTU B-TECH
  19. Write down the postulates of special theory of relativity. Derive Lorentz transformation equation.
    Long Answer 4 Marks Dec-2019 • PTU B-TECH
  20. Derive an expression for the variation of mass with velocity. What inferences do you draw from it?
    Long Answer 4 Marks Dec-2019 • PTU B-TECH
  21. How Quantum mechanics is different from classical mechanics? Derive an expression for time independent Schrodinger wave equation.
    Long Answer 4 Marks Dec-2019 • PTU B-TECH
  22. Solve the Schrodinger wave equation for a particle having mass M confined to one dimensional infinite potential box of width L in order to obtain its eigen-values.
    Long Answer 4 Marks Dec-2019 • PTU B-TECH
  23. Discuss Ball milling and Sol-gel methods for synthesis of nanoparticles.
    Long Answer 4 Marks Dec-2019 • PTU B-TECH
  24. What do you mean by carbon nanotubes? Give two procedures for synthesis of carbon nanotubes.
    Long Answer 4 Marks Dec-2019 • PTU B-TECH

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01 Where can I find engineering physics previous year question papers for Bachelor of Technology, 1st-2nd semester?

This page lists engineering physics question papers uploaded for Punjab Technical University Bachelor of Technology, 1st-2nd semester, organized for subject-wise browsing where available.

02 Are these official Punjab Technical University question papers?

BRpaper is not the official website of Punjab Technical University. These papers are shared for reference and revision purposes only and are not official university material.

03 How can previous year engineering physics papers help in exam preparation?

Reviewing past papers can help you understand how questions are typically framed, notice commonly repeated topics, and get a sense of the exam pattern before your own exam.

04 What kind of topics does engineering physics usually cover?

The question papers here relate to the official engineering physics syllabus set by the university for this course and semester.

05 Does this page include a engineering physics with answers pdf or solved answers?

This page focuses on providing access to the previous year question papers themselves. A separate question bank or solved answers may not be available for every paper.

06 Can I find papers for other subjects in the same Bachelor of Technology?

Yes, BRpaper organizes papers by university, course, stream, and semester, so you can browse other subjects within the same Punjab Technical University Bachelor of Technology.