(1) Standing pulse can be longitudinal or transverse.
(2) The disturbance confined to a particular part between the starting point and reflecting point of the ray.
(3) There is no forward speed of the disturbance from one molecule to the adjoining particle and so on, beyond this particular section.
(4) The total energy related with a stationary wave is twice the power of each of incident and reflected pulse. As in stationary pulse nodes are permanently at rest. So no power can be transferred across then i.e. power of one part is confined in that section. However this energy oscillates between kinetic energy and elastic potential energy of molecules of the medium.
(5) The medium divided up into a number of components. Each part is vibrating up and down as a whole.
(6) All the molecules in one particular segment vibrate in the same medium. Molecules in two consecutive segments differ in phase by 180°.
(7) All the molecules except those at nodes, execute simple harmonic motion about their mean position with the same time period.
(8) The magnitude of vibration of particles varies from zero at nodes to maximum at antinodes (2a).
(9) All positions pass their mean position twice in one time period.
(10) Speed of molecules while crossing mean position varies from maximum (ωAsw = ω.2a) at antinodes to zero at nodes.
(11) In standing waves, if amplitude of component waves are not equal. Given amplitude at nodes will be minimized. Therefore, some power will pass across nodes and waves will be partially standing.
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