Two wires A and B, having identical geometrical construction, are stretched from their natural length by small by equal amount. The young modulus of the wires are YA and Y �B whereas the densities are ρA and ρB. It is given that YA > YB and ρA > ρB. A transverse signal started at one end takes a time t1 to reach the other end for A and t2 for B.


But since the lengths of wires A and B are not known, the relation between A and B cannot be


determined

1