STANDARD Physics Elasticity MCQ Question
A wire of length L and area of cross-section A, is stretched by a load. The elongation produced in the wire is l. If Y is the Young’s modulus of the material of the wire, then the force constant of the wire is
YL/A
Yl/A
YA/L
YA/l
Correct Answer
Detailed Explanation
According to the definition of Young's modulus, Y = (F/A) / (l/L). Rearranging gives the force constant as YA/L.
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