Kundts Tube

Kundts Tube – 1000814Glass tube for demonstrating standing sound waves and calculating wavelengths of sound using cork powder in a method devised by Kundt.
Cork powder is spread evenly throughout the tube by means of a filler chute. Then a sound source, e.g. a whistle, a 1700 Hz tuning fork (U10115) or a horn speaker (U8432680), is used to excite the powder into a regular pattern of nodes and antinodes. The effective length of the tube can be altered by means of a piston.
Length:600 mm
External diameter:20 mm
Internal diameter:17 mm
Contents:
1Glass tube with funnel
1Plunger
1Filler chute
1Whistle
1Bottle of cork powder