Question

A string 1m long is drawn by a 300Hz vibrator attached to its end. The string vibrates in 3 segments. The speed of transverse waves in the string is equal to

• A. 100 m/s
• B. 200 m/s
• C. 300 m/s
• D. 400 m/s

Answer 1

Answer: (B)

200 m/s

Wavelength, $\lambda$ $=2L$.

Where, $L$ is the length of the segment or number of segments.
Velocity, $v=$ $\lambda f$ $=300\times \frac{2}{3}=200m/s$