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InsemMar 20242019 patternFE

Engineering Physics SPPU Insem Question Paper Mar 2024

All 4 questions from this SPPU insem paper, as printed. Read them here or open the PDF.

Open the PDFMost repeated Engineering Physics questions
Subject code
107002
Pattern
2019 pattern
Exam
Insem
Session
Mar 2024
Max. marks
30
Time
1 Hour
Semester
II
Paper code
[6267]-3

Printed for: F.E. (All Branches) (Insem)

Instructions to the candidates

  1. Answer Q1 or Q2 and Q3 or Q4.
  2. Figures to the right indicate full marks.
  3. Neat diagrams must be drawn wherever necessary.
  4. Assume suitable data, jf necessary.

Questions

  1. Q1

    1. a)

      What is wedge shaped thin film? Draw a neat and labelled diagram showing interference in wedge shaped thin film. Explain its use to test optical flatness.

      [6]
    2. b)

      For a single slit, diffraction, write down the expression for resultant amplitude. Using this expression derive the condition for : i) Principal maxima ii) Minima

      [5]
    3. c)

      Polarizer and analyzer are set with their polarizing axes parallel so that intensity of transmitted light is maximum. Through what angle should either be turned so that intensity of transmitted light becomes. i) 50% ii) 25% of the maximum intensity

      [4]

  2. Q2

    1. a)

      What is double refraction? Explain Huygen’s theory of double refraction for uniaxial crystal.

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

      [6]
    2. b)

      Explain application of interference as anti-reflection loading. Derive the condition for minimum thickness of the anti-reflection loading.

      [5]
    3. c)

      A grading has 6000 lines km. For a wave length 4500Aº. What is the maximum order that is visible. 2

      [4]

  3. Q3

    1. a)

      Explain principle, construction and working of CO 2 laser.

      Also asked:Mar 2026 ·Feb 2026 ·Oct 2025 ·Apr 2025 ·Mar 2025 ·Sep 2024

      [6]
    2. b)

      What is optical fiber? Distinguish between SHP index and graded index optical fiber. (Any 4 points)

      Also asked:Feb 2026 ·Oct 2025 ·Apr 2025 ·Mar 2025 ·Nov 2024

      [5]
    3. c)

      Calculate numerical aperture and acceptance angle for an optical fiber whose core and cladding has refractive indices 1.59 and 1.54 respectively.

      Also asked:Sep 2024

      [4]

  4. Q4

    1. a)

      Explain the process of fiber optic communication system with block diagram. State any two advantages of optical fiber communications.

      Also asked:Oct 2023

      [6]
    2. b)

      What is holography? Explain recording of hologram using laser.

      Also asked:Mar 2026 ·Mar 2025 ·Sep 2024 ·Oct 2023 ·Oct 2022

      [5]
    3. c)

      State and explain any four characteristics of laser. 

      [4]