A wire of length L,area of cross section A is hanging from a fixed support. The length of the wire changes to `L_1` when mass `M` is suspended from its free end. The expression for Young's modulus is:

A wire of length L is hanging from a fixed support. The length changes to L_(1) and L_(2) when masses M_(1)and M_(2) are suspended respectively from its free end. Then L is equal to

A wire of length L is hanging from a fixed support. The length changes to L_(1) and L_(2) when masses M_(1)and M_(2) are suspended respectively from its free end. Then L is equal to

A wire of length L and cross section A hung from a rigid support is loaded with a mass M The elongation produced is

A metal wire of length L_1 and area of cross section A is attached to a rigid support. Another metal wire of length L_2 and of the same cross sectional area is attached to the free end of the first wire. A body of mass M is then suspended from the free end of the second wire, if Y_1 and Y_2 are the Young's moduli of the wires respectively the effective force constant of the system of two wires is

A metal wire of length L_1 and area of cross section A is ttached to a rigid support. Another metal wire of length L_2 and of the same cross sectional area is attached to the free end of the first wire. A body of mass M is then suspended from the free end of the second wire, if Y_1 and Y_2 are the Young's moduli of the wires respectively the effective force constant of the system of two wires is

A metal wire of length L_1 and area of cross section A is ttached to a rigid support. Another metal wire of length L_2 and of the same cross sectional area is attached to the free end of the first wire. A body of mass M is then suspended from the free end of the second wire, if Y_1 and Y_2 are the Young's moduli of the wires respectively the effective force constant of the system of two wires is

A metal wire of length L, area of cross-section A and Young's modulus Y behaves as a spring of spring constant k.

A metal wire of length L, area of cross-section A and Young's modulus Y behaves as a spring of spring constant k.