PhysicsEasy85×since 2002Q8547A string 2.0 m long and fixed at its ends is driven by a 240 Hz vibrator. The string vibrates in its third harmonic mode. The speed of the wave and its fundamental frequency is :-A180m/s, 80 HzB180m/s, 120 HzC320m/s, 120 HzD320m/s, 80 HzCheck answerSkip