Question

The period of the musical node E0 is 4.85 × 10-2 seconds. What is the frequency of this note?Select one of the options below as your answer:
A. 10.8 hertz
B. 20.6 hertz
C. 40.8 hertz
D. 48.5 hertz
E. 80.9 hertz

Answer 1

In case you closed this without finding the answer:\[T=\frac{1}{f}\]Where \(T\) is the period and \(f\) is the frequency.

Answer 2

You can think of a period as the time per cycle, and the frequency as the number of cycles per time. They're inverse by definition, and that equation above is how you write it in math!

Answer 3

B. 20.6 hertz