Question:
A sound wave of frequency $245 \mathrm{~Hz}$ travels with the speed of $300 \mathrm{~ms}^{-1}$ along the positive $x$-axis. Each point of the wave moves to and fro through a total distance of $6 \mathrm{~cm}$. What will be the mathematical expression of this travelling wave?
Correct Option: , 4
Solution:
(4)
$\omega=2 \pi \mathrm{f}$
$=1.5 \times 10^{3}$
$\mathrm{A}=\frac{6}{2}=3 \mathrm{~cm}=0.03 \mathrm{~m}$
Click here to get exam-ready with eSaral
For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.