Question

The frequency of the musical note F#3 is 1.85x102 hertz. What is its period?

A. 5.40x10^-3 seconds
B. 1.05x10^-3 seconds
C. 3.09x10^-3 seconds
D. 5.31x10^-1 seconds

Answer 1

its A

Step-by-step explanation:

Answer 2

The period of the musical note is
`\text { 5. } 4 * 10^(-3)` seconds.

Answer: Option A

Step-by-step explanation:

The frequency is defined as the number of oscillations or a complete cycle of wave occurred in a given time interval. So the frequency is inversely proportional to the time period. Thus the mathematical representation of frequency with time period is

`\text {Frequency}=\frac{1}{\text {Time period }}`

As the frequency is given as
`1.85 * 10^(2) \mathrm{Hz}`, the time period can be found as

`\text { Time period }=\frac{1}{\text { Frequency }}`

Thus,

`\text { Time period }=(1)/(1.85 * 10^(2))=5.4 * 10^(-3) \mathrm{s}`

Thus the time period for the frequency of the musical note is
`\text { 5. } 4 * 10^(-3)` seconds.