JEE MAIN - Physics (2024 - 30th January Morning Shift - No. 19)
Young's modules of material of a wire of length '$$L$$' and cross-sectional area $$A$$ is $$Y$$. If the length of the wire is doubled and cross-sectional area is halved then Young's modules will be :
4 Y
2 Y
$$\mathrm{\frac{Y}{4}}$$
Y
Erläuterung
Young's modulus depends on the material not length and cross sectional area. So young's modulus remains same.