The period of the musical note is [tex]\text { 5. } 4 \times 10^{-3}[/tex] seconds.
Answer: Option A
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
[tex]\text {Frequency}=\frac{1}{\text {Time period }}[/tex]
As the frequency is given as [tex]1.85 \times 10^{2} \mathrm{Hz}[/tex], the time period can be found as
[tex]\text { Time period }=\frac{1}{\text { Frequency }}[/tex]
Thus,
[tex]\text { Time period }=\frac{1}{1.85 \times 10^{2}}=5.4 \times 10^{-3} \mathrm{s}[/tex]
Thus the time period for the frequency of the musical note is [tex]\text { 5. } 4 \times 10^{-3}[/tex] seconds.
