A uniformly tapering conical wire is made from a material of Youngs's gamma and has a normal, unextended length L. The radii, at the upper and lower ends of this conical wire, have values R and 3R, respectively. The upper end of the wire is fixed to a rigid support and a mass Mis suspended from its lower end. The equilibrium extended length, of this wire would equal :

A uniformly tapering conical wire is made from a material of Youngs's

1.	A uniformly tapering conical wire is made from a material of Youngs's gamma and has a normal, unextended length L. The radii, at the upper and lower ends of this conical wire, have values R and 3R, respectively. The upper end of the wire is fixed to a rigid support and a mass Mis suspended from its lower end. The equilibrium extended length, of this wire would equal :
Answer» ` L ( 1+ (2)/( 9) ( MG)/( pi gamma R^(2) ) )` `L ( 1+ (1)/( 9)(Mg)/( pi gamma R^2) )` `L ( 1+ (1)/(3) (Mg)/( pi gamma R^2) )` `L ( 1 + (2)/(3) (Mg)/( pi gamma R^2) )` ANSWER :C