Physics - Wave on String Question with Solution | TestHub

The equation of a vibrating string, fixed at both ends, is given by $y=(3\mathrm{mm})\sin \left(\frac{\pi x}{15}\right)\sin (400\pi t)$, where x is the distance (in cm) measured from one end of the string, t is the time (in seconds), and y gives the displacement. The string vibrates in 4 loops. The speed of transverse waves along the string equals, for the fundamental mode,