Reflection of Sound Model

The Reflection of Sound Model from Samtech Instruments lets students verify that sound obeys the same laws of reflection as light. A ticking clock or small buzzer is placed at the mouth of one tube while the listener detects the reflected sound through the second tube. By adjusting both tubes over the graduated semicircular scale, learners confirm that the angle of incidence equals the angle of reflection and that the incident tube, reflected tube and the normal all lie in the same plane.

Why choose this Reflection of Sound Model

Specifications

Experiment & applications

• Verify the laws of reflection of sound in the physics lab
• Show that angle of incidence = angle of reflection for sound waves
• Demonstrate that sound and light follow analogous reflection behaviour
• Support STEM and mini science-centre activities
• Reinforce the concept of the normal and the plane of reflection

How it works

Place a steady sound source at the open end of the first tube and align it to a chosen angle on the scale. Move the second tube until the reflected sound is loudest at the listening end. Reading both angles from the normal shows they are equal — a direct, hands-on confirmation of the reflection of sound using this model.

Frequently asked questions