Question

The length of a rod is 20 cm and area of cross-section 2\,c{{m}^{2}}
. The Young's modulus of the material of wire is 1.4\times {{10}^{11}}\,N/{{m}^{2}}
. If the rod is compressed by 5 kg-wt along its length, then increase in the energy of the rod in joules will be
A) 8.57\times {{10}^{-6}} B) 22.5\times {{10}^{-4}} C) 9.8\times {{10}^{-5}} D) 45.0\times {{10}^{-5}}

Answer 1

Hello Friend...

The answer of u r question is..

Option.D

Thank you..

Answer 2

The length of a rod is 20 cm and area of cross-section 2\,c{{m}^{2}}

. The Young's modulus of the material of wire is 1.4\times {{10}^{11}}\,N/{{m}^{2}}

. If the rod is compressed by 5 kg-wt along its length, then increase in the energy of the rod in joules will be

A) 8.57\times {{10}^{-6}} B) 22.5\times {{10}^{-4}} C) 9.8\times {{10}^{-5}} D) 45.0\times {{10}^{-5}}✔✔