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  4. The Young's modulus of the material of a wire is equal to the

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Q. The Young's modulus of the material of a wire is equal to the

KEAMKEAM 2009Mechanical Properties of Solids

Solution:

According to Hooke's law $$ srtess $\propto$ strain or $$ stress = Y x strain when Y is Young's modulus. For unit strain, Young's modulus is equal to the stress.