16) A body of mass 3.14 kg is suspended form one end of a wire of length 10 m. The radius if cross - section of the wire is changing uniformly from 5×10-4 m at the top (i.e. point of suspension) to 9.8×10-4 mat the bottom. Young's modulus of elasticity is 2×1011 N/m2. The change of length of the wire is.
(a) 4×10-3 m(b) 3×10-3 m(c) 10-3 m(d) 2×10-3 m
Copyright © 2022 Aakash EduTech Pvt. Ltd. All rights reserved.