The Young's modulus of steel wire of radius and length is .
If the radius and length of the wire are doubled then the value of
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JEE Main 2026 · 5 Apr · Shift 1, Physics question 31
Answer and worked solution
Official answer: C
Young's modulus is a property of the material. Changing the wire's radius or length changes its stiffness, but not Y, which remains unchanged.
(C)