3020 Set of 8 tuning forksThe items are made of chrome steel, with different length and section of 5.5x8.5 mm.Hz frequencies : 261.6 - 293.6 - 329.6 - 349.6 - 392 - 440 - 493.9 - 523.2.Error ±0,2% at a temperature of 20°C.With case and hammer. Suitable for demonstrating the tones-frequencies relationship, and for tuning music instruments.
3008 Kundt’s tubeThe incident acoustic wave interferes with the reflected one, creating the stationary waves. The cork powder visualizes nodes and bellies, so making wavelength measurement possible. Now, knowing the frequency, you can measure the acoustic waves’ speed in the air. The item is supplied with tube, stands and bases, piston and cork powder...
3034 Apparatus to measure acoustic waves’ velocity in airSUPPLIED EQUIPMENT1 bench 50cm2 supports1 loudspeaker1 microphone with amplifier2 leads2 BNC leadsNecessary equipment not suppliedAcoustic signals generatorDouble traces oscilloscopeUsing the bench you can measure the distance l (wave length) at which the delay is a period T.So: