Question

A string 1m long is drawn by a 300 Hz vibrator attached to its end. The string vibrates in three 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

Correct Answer - B
`3(v/(2l)) = 300`
`:. v=200 l=(200)(1)`
`=200 m//s`.