Displays nodes and antinodes Classes Used: PHYS 101, PHYS 153
To demonstrate standing waves, nodes and anti-nodes
Kundt's tube with speaker attached Function generator Amplifier (stereo receiver)
After some amount of vibrating, the styrofoam beads will build up sufficient static charges to stay in the standing wave shape even when the speaker is turned off.
Music can also be played into the speaker for this demonstration .
Length between the nodes can be used to calculate the speed of sound in air.
The amplifier and function generator can be found on one of the carts
Demo room information