Question

The young's modulus of a wire of length '$L$' and radius '$r$' is '$Y$'. If length is reduced to $L/2$ and radius $r/2$, Young's modulus will be :

• A. $Y/2$
• B. $Y$
• C. $2Y$
• D. $4Y$

Answer 1

The correct option is B $Y$

Young's Modulus is a material constant invariant of the forces and dimensions.
It is the ratio of stress to strain. It will not change with respect to individual stress and strain.