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The distance moved by the particle in a particular direction from the equilibrium point

The time taken by a source to produce one wave

Angle subtended at the centre of a circle when the path of an oscillating particle of a wave is represented by the circumference of the circle.

Distance moved my energy of the wave in a unit time

An imaginary line drown through the crest of a wave perpendicular to the energy flow

Waves which transfer energy

Wave, of which the particles oscillate parallel to the energy

The number of waves produced per unit time by a source

Maximum displacement of a particle from the equilibrium point

1 wave produced by the source per second

Waves, of which the particles oscillate perpendicular to the energy

The length between two similar points in two consecutive waves