Wave & Sound

For experiments in wave motion, pulses, reflection, & interference. Steel wire closed wound helix, 19mm diameter; closed length 3m extending to approx. 9m.

The instrument is a device to illustrate the laws of wave phenomenon-using ripples on the surface of water as the prototypes of all transverse waves. Ripple tank illustrates important wave motions like rectilinear and circular. It can also demonstrate refraction, diffraction and interference of water waves. Tank is supported by four legs having leveling screws. Size of the tank is 595x510x70mm supplied complete with rippler assembly, two straight obstacles 130mm long, one straight obstacle 40mm long, curved reflector 200mm radius, transparent refraction plate, wooden wave roller, one pack of rubber bands, water dropper, sponge, illuminator, hand stroboscope and suitable power supply. It is supplied with instruction manual.

A slotted hardboard disc, with finger hole, is pivoted on a bearing mounted which also acts as a convenient handle. The disc has twelve radial slots 50x3mm extending to its edge. Diameter of the disc is 250mm.

Comprising a hollow wooden box 1140x125x100mm with 2 meter rules divided in mm. Two wires of brass & steel attached to fixed bridge & tensioned by fine adjustment pegs. Two movable bridges, pulley & fixed screw to enable a third wire to fixed for tensioning by masses. Complete with two bridges.