A String 2 $\times$ 10^-2 Kg

Multiple Choice

A string 2.0 m long has a mass of 2.4 $\times$ 10^-2 kg.When fixed at both ends,it vibrates with a fundamental frequency of 150 Hz.The speed of a transverse wave in the string is

A) 3.6 m/s
B) 75 m/s
C) 0.30 km/s
D) 0.60 km/s
E) 0.63 km/s