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  4. The Young's modulus of a wire of length L and radius r is Y . If the length and radius are reduced to (L/2) and (r/2) , then its Young's modulus will be

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Q. The Young's modulus of a wire of length $L$ and radius $r$ is $Y$ . If the length and radius are reduced to $\frac{L}{2}$ and $\frac{r}{2}$ , then its Young's modulus will be

NTA AbhyasNTA Abhyas 2020

Solution:

Young's modulus of wire does not vary with the dimensions of the wire. It is a property of the material.