JEE Mains · Physics · STD 11- 8. mechanical properties of solids
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 _______.
- A \(\frac{Y}{4}\)
- B \(4\ Y\)
- C \(\mathrm{Y}\)
- D \(2 \mathrm{Y}\)
Answer & Solution
Correct Answer
(C) \(\mathrm{Y}\)
Step-by-step Solution
Detailed explanation
Young's modulus depends on the material not length and cross sectional area. So young's modulus remains same.
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