Vibrations on a String and Resonance - PhysLab

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Vibrations on a String and Resonance

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Student Manual

The experiment gives you an introduction to the phenomenon of resonance, and the frequencies at which it occurs by visualizing the stationary waves formed on a vibrating string. We will learn the effect of change in tension and string length on resonance. We shall also investigate the non linearities in a vibrating string. Experiment also provides an introduction to another very interesting phenomenon of formation of circular modes on a string.

Software Code String
Sample Results Dispersion relation of bare string
Experiment Code 1.9
Version 5 March 2015, 2015-v1

Further Readings and References

  • Vibrational properties of a loaded string
    American journal of Physics, S. Parmley, T. Zobrist, T. Clough, A. Perez-Miller, M. Makela, and R. Yu, 63, 547, (1995).
  • Nonlinear resonance in vibrational strings
    American journal of Physics, John A. Elliot, 50, 1148, (1982).

Pictorial Procedure

1. Provided apparatus
2. Fixing a wooden support
3. Attaching string to the wooden support

4. Fixing a pulley
5. Measuring the diameter of a string
6. Connecting signal generator leads to the woofer

7. Woofer connected to the signal generator
8. Signal generator in frequency mode, AMPLITUDE OFFSET is 10V and BNC connector at the output knob
9. Attaching string to the woofer

10. Setup for finding the dispersion relation of a bare string
11.Setup for beaded string

Lab 1 | Tags: waves and oscillations
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  • Home
  • About Us
    • Overview
    • Centre for Experimental Physics Education (CEPE)
    • Physlab Team
    • Physlab Guidebook
    • Alumni
    • Open Positions
    • Muhammad Sabieh Anwar (Personal)
  • Academics
    • Lab Courses
    • Lab-I (ENGG-100/PHY-100/200)
    • Lab-II (PHY 300/500)
    • AstroLAB
    • Ibn Sahl Corner for Optics
    • Fast Optics
    • Smart Physics
    • Single Photon Quantum Mechanics Lab
    • Chasing Cosmic Ray Muons at Physlab
    • Stories
    • Physics Studio
    • Research Stories
    • Class Activities
    • Courses Taught
    • Class Demonstrations
    • PhysDiary
    • Health and Safety
    • Lab Safety
    • Workplace Organization
  • Research
    • Research Themes
    • Research Internships
    • Research Stories
    • Physics WorldCup
      • International Young Physicists’ Tournament (IYPT) 2019
      • International Young Physicists’ Tournament (IYPT) 2018
      • International Young Physicists’ Tournament (IYPT) 2016
    • Hunerkada
    • Grants
    • Theses and Reports
    • Scientific Publications
    • Invited Talks (Selected)
  • Outreach
    • Media
      • Lectures, Podcasts and Interviews
      • Videobytes
      • YouTube Channel
      • Visitors
      • Testimonials
    • The Scientific Mind Through the Eyes of a Physics Experimenter
    • National Laboratory Immersion Program
      • First Lahore 2012
      • Second Sukkur 2013
      • Third Lahore 2014
      • Fourth Lahore 2016
    • Labview Workshop 2016
    • Open house
      • 2009-2015
      • Open house 2023
    • Khwarizmi Science Society
    • Helping Pakistan’s Universities
      • National University of Technology (NUTECH) 2019
      • Pakistan Institute of Engineering and Applied Sciences
        (PIEAS) 2019 (Final Phase)
      • Pakistan Institute of Engineering and Applied Sciences
        (PIEAS) 2019 (Phase 2)
      • Pakistan Institute of Engineering and Applied Sciences
        (PIEAS) 2018 (Phase 1)
      • National University of Science & Technology 2016
      • Habib University 2014
      • Preston University 2013
      • Ghulam Ishaque Khan Institute of
        Engineering Sciences and Technology 2011
      • Institute of Space Technology 2010
    • The National STEM School
      • STEM School (2018 – 2019)
      • STEM school (2016 – 2017)
    • Abdus Salam Memorial Lecture Series
  • Facilities
    • Laboratories
    • Equipments
    • Devices & Softwares
      • PhysPlot
      • Physlogger
      • Phystrack
    • Mechanical Workshop
    • Inventory
    • 3D Printed Galleria
    • Forms
    • Equipment Howto’s
  • PhysGPT
  • Contact Us