Question

Musicians in an orchestra tune their instruments to what is called "concert a," a frequency of 440 hz. determine the period for one vibration.

Answer 1

The period is defined as the time needed to complete one vibration, and it is the reciprocal of the frequency:

`T= (1)/(f)`
where f is the frequency.

The frequency of the instruments is f=440 Hz, so according to the previous formula, the period of one vibration is

`T= (1)/(f)= (1)/(440 Hz)=2.27 \cdot 10^(-3) s=2.27 ms`