7A50.40 - De Broglie matter waves : resonating wire loop




Code: 7A50.40


Demo Title: De Broglie matter waves : resonating wire loop


Subject: Wave Mechanics


Description:
The PASCO Wire Loop will have standing waves at discrete frequencies, each one corresponding to a unique wavelength. Use a wave driver to drive frequency.


Procedure:

Mount the Wave Driver either vertically (upright) or horizontally as desired. Ensure there is sufficient room for the Resonance Wire Loop. 2. If the Wave Driver is mounted horizontally, adjust the banana plug on the Resonance Wire Loop until it is perpendicular to the plane of the loop. 3. Insert the banana plug into the drive post of the Wave Driver. If the Wave Driver is mounted horizontally, make sure the loop is oriented so that the banana plug is at the highest point. 4. Connect the Wave Driver to one of the function generators listed under Additional equipment required. 5. Start driving the Wave Driver at about 5 Hz, with approximately 1 mm of amplitude, and slowly increase the frequency. 6. As the frequency is increased, the wire will begin to vibrate in various modes with an odd number of anti-nodes present. These nodes are a graphic demonstration of how electrons can have a resonant frequency as they orbit the nucleus.


Links:

https://cdn.pasco.com/product_document/WA-9405_012-17473A.pdf https://www.pasco.com/products/lab-apparatus/mechanics/springs-and-oscillations/resonance-wire-loop-25cm#documents-panel


Disclaimer: These demonstrations are provided only for illustrative use by persons affiliated with Rutgers University and only under the direction of a trained instructor or physicist. Rutgers University is not responsible for any demonstrations performed by those using their own or others equipment, or who choose to use this reference material for their own purpose. The demonstrations included here are within the public domain and can be found in materials contained in libraries, bookstores, and through electronic sources. Performing all or any portion of any of these demonstrations, with or without revisions not depicted here, entails inherent risks. These risks include, without limitation, bodily injury (and possibly death), risks to health that may be temporary or permanent and that may exacerbate a pre-existing medical condition, and property loss or damage. Anyone performing any part of these demonstrations, even with revisions, knowingly and voluntarily assumes all risks associated with them.


Social Media


FB f Logo blue 29

Contact Us


firstlight2 footer Physics & Astronomy
Rutgers, The State University
   of New Jersey
136 Frelinghuysen Road
Piscataway, NJ 08854-8019
(848) 445-8781
npamula@physics.rutgers.edu


Copyright 2024, Rutgers, The State University of New Jersey. All rights reserved.
Rutgers is an equal access/equal opportunity institution. Individuals with disabilities are encouraged to direct suggestions, comments, or complaints concerning any accessibility issues with Rutgers web sites to: accessibility@rutgers.edu or complete the Report Accessibility Barrier or Provide Feedback Form .