![]() It is denoted by T.įrequency: The frequency of a wave is the number of waves produced per unit time in the given medium. ![]() Time Period: The time period of a wave is the time in which a particle of medium completes one vibration to and fro about its mean position. The energy of momentum is transferred to the neighbouring particles of the medium as the wave proceeds.Īmplitude: It is the maximum displacement suffered by the particles of the medium about their mean positions. The motion of disturbance is called wave motion. When a large number of particles vibrate simultaneously in a medium, then disturbance propagates in the medium. When a longitudinal wave passes through the air, the density of air changes continuously and the pressure and energy are transferred. When coils are farther apart than normal, rarefactions are observed.Ī long feasible spring which can be compressed or extended easily is called a slinky. When coils are closer to each other than normal, compressions are observed in the spring. e.g., those waves which travel along a spring when it is pushed and pulled at one end, are longitudinal waves. The waves which are produced in the air are always longitudinal. Longitudinal waves can be produced in all the three media such as solids, liquids and gases. ![]() Types of Mechanical Waves: Longitudinal WavesĪ wave in which the particles of the medium vibrate in the same direction of propagation of the wave is called a longitudinal wave. Matter Waves: The waves associated with moving particles like electrons, protons, etc, are called matter waves. Mechanical Waves: The waves which can be propagated or produced only in a material medium are called mechanical waves.Įlectromagnetic Waves: The waves which require no medium for their propagation or production are called electromagnetic waves. A wave is a vibratory disturbance in a medium which carries energy from one point to another point without any actual movement of the medium. ![]()
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