A 013-M String,fixed at Both Ends and Vibrating in Its N

Multiple Choice

A 0.13-m string,fixed at both ends and vibrating in its n = 4 harmonic,excites a pipe that is 0.88 m. Long and open at both ends,into its second overtone resonance.What is the speed of transverse waves on the string? The speed of sound in air is 345 m/s.

A) 38 m/s
B) 36 m/s
C) 34 m/s
D) 32 m/s
E) 30 m/s