A steel wire of length 64 cm weighs 5 g. If it is stretched by a force of 8 N, what would be the speed of a transverse wave passing on it ?
Mass = 5 gm
Length = 64 cm
∴ Mass per unit length
=564gm/cm
∴ Tension, T = 8N
=8×106 dyne
V=√(Tm)
=√(8×105×64)5
=3200cm/s=32m/s