3B55.10 • Interference and Diffraction of Sound: Speaker Bar

Picture shows demonstration used at the University of Texas at Austin

Instructions / Notes:

• The demonstration used be call the "Young's Acoustical Double Slit".
• Two audio loudspeakers are mounted at the ends of a table that can be rotated.
• The speakers are driven through an amplifier by a function generator.
• A set of Moire patterns are provided - which can be displayed on the doc cam.

Demo Staff:

• The Pasco function generator, shown below, needs to be set to 880 Hz before leaving the classroom.

Picture shows the rear of the demonstration

Last updated on April 17, 2019