Four wires made of Al, Cu, Fe and steel and of lengths l_1 = 100m, l_2 = 150m, l_3 = 250m and l_4 = 350m,break due to their own weights. Arrange these wires with their breaking stresses in ascending orderd_(Al) = 7500 kg//m^2 , d_(Cu) 7800 kg//m^3 , d_(Fe) = 9000kg//m^2 , d_("steel") = 11000 kg//m^3

Four wires made of Al, Cu, Fe and steel and of lengths l_1 = 100m, l_2

1.	Four wires made of Al, Cu, Fe and steel and of lengths l_1 = 100m, l_2 = 150m, l_3 = 250m and l_4 = 350m,break due to their own weights. Arrange these wires with their breaking stresses in ascending orderd_(Al) = 7500 kg//m^2 , d_(Cu) 7800 kg//m^3 , d_(Fe) = 9000kg//m^2 , d_("steel") = 11000 kg//m^3
Answer» St, Fe, AL, Ci St, Fe, CU, Al Al, Cu, Fe, St Fe, St, Al, Cu Answer :C