wave, it is the disturbance that propagates and transfers energy in the direction of propagation., wave motion, it is the periodic motion produced as a result of the vibration of medium particles at a certain moment and in a definite direction., line of wave propagation, the direction of progression of the wave., wave that is need medium to propagate, mechanical wave, wave that is can travel in vacuum, electromagnetic wave, distance between two successive crests or two troughs, wave length, a tube in which water moves as circular waves, jacuzzi

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