A specially designed versatile apparatus for the investigation of the wave properties, such as wave propagation, reflection, refraction, diffraction and interference. Permits demonstration with an overhead projector or use as a free standing bench model, allowing investigations to be carried out directly. Comprises a rectangular plastic tank with clear bottom and sloped sides incorporating beach effect to eliminate unwanted reflections. The tank has four detachable legs mounted at its underside at the corners with a hole in the clear tray for water drainage. One end of the tank has clamps for supporting lamp holder with a pair of clamps on each side for mounting rippler support rods. Rippler assembly comprises of a rectangular plastic rod with series of holes suitable for mounting spherical dippers and a low voltage DC motor having eccentric cam attached to its shaft to produce oscillatory motion. Supplied complete with following accessories.

•  I lluminantAssembly

•   Setof4barriers–apairofbiggerL-shaped(75×25mm)andapairof

  smaller L-shaped barrier (25×25mm)

•  1 CurvedBarrier,2.5cmhigh,withuniformradiusofcurvature

•  1 HandStroboscope

•  1 ConvexLens

•  1 ConcaveLens

•  1 Rectangular Block

•  2 Spherical Dippers

•  Spare Elastic Cords for suspending rippler assembly