Q. What is the force that is required to produce unit elongation in a wire known as?
Answer: Force constant
Notes: Force constant of material of wire is the force required to produce unit elongation in a wire. It is denoted by k. K = F/l or K = YA/l

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 23 in Physics GK 08 - General Properties of Matter in above course in App.