. The equation of a vibrating string, fixed at both ends, is given by
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
A. 60 m/s
B. 120 m/s
C. 30 m/s
D. 15 m/s.
Best Answer
Ans: A
Sol: The speed of the transverse waves equals the frequency × wavelength
V = 200 × 0.3 m/s = 60 m/s
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