Saturday, 21 February 2015

Field And Wave Notes And Book

field is a physical quantity that has a value for each point in space and time. For example, in a weather forecast, the wind velocity is described by assigning a vector to each point on a map. Each vector represents the speed and direction of the movement of air at that point.
A field can be classified as a scalar field, a vector field, a spinor field or a tensor field according to whether the value of the field at each point is a scalar, a vector, a spinor or a tensor, respectively.
 A wave is disturbance or oscillation (of a physical quantity), that travels through matter or space, accompanied by a transfer of energy.
Waves are described by a wave equation which sets out how the disturbance proceeds over time. The mathematical form of this equation varies depending on the type of wave.
Field and wave subject is based on these two small definition but have large mean . 
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