A 76 cm long sonometer wire is stretched by a4 xx 10^(6)dyn force and an alternating current is passed through it . A horse-shoe magnet is placed at the mid-point of the wire in such a way that the wire passes between the poles of the magnet . Resonant vibration is observed due to the force acting on the wire in this arrangement.The densityofthe material of the wire is8 . 8 g* cm^(-3) and radius of the wire is 0 . 5 mm . Determine the frequency of the alternating current .

A 76 cm long sonometer wire is stretched by a4 xx 10^(6)dyn force and

1.	A 76 cm long sonometer wire is stretched by a4 xx 10^(6)dyn force and an alternating current is passed through it . A horse-shoe magnet is placed at the mid-point of the wire in such a way that the wire passes between the poles of the magnet . Resonant vibration is observed due to the force acting on the wire in this arrangement.The densityofthe material of the wire is8 . 8 g* cm^(-3) and radius of the wire is 0 . 5 mm . Determine the frequency of the alternating current .
Answer» ANSWER :50 HZ