If the radius of wire stretched by a load is doubled, then its Young's modulus will be
A)Doubled
B)Halved
C)become four times
D)remain unaffected

Question

Quizplus · Accepted Answer

Young's modulus is a material property that measures the stiffness of a solid material. It is defined as the ratio of stress (force per unit area) to strain (relative deformation) in the linear elasticity regime of a uniaxial deformation and is usually determined by tensile tests. The formula for Young's modulus does not include the dimensions of the material (such as length, area, or radius in the case of a wire) being tested; it solely depends on the material's properties. Therefore, changing the radius of the wire does not affect its Young's modulus.

If the Radius of Wire Stretched by a Load Is