the period of a sine is the reciprocal of the frequency
In physics texts, frequency is also the reciprocal of period. But it has the units of hertz, or oscillation/second not the dimensionless expression 1/radians. Frequency would only be applied to vibration graphs having equations of the form y = sin(t) and y = cos(t).here are 9 complete waves in a distance along the x-axis of making the period. Note that as shown on the graph. The frequency is the reciprocal of the period or. Generalizing: For either y = sin(Bx) or y = cos(Bx) the period is.