Question: What is the definition of Young\'s modulus?

Options:

1. The ratio of tensile stress to tensile strain
2. The ratio of compressive stress to compressive strain
3. The ratio of shear stress to shear strain
4. The ratio of bulk stress to bulk strain

Correct Answer: The ratio of tensile stress to tensile strain

Solution:

Young\'s modulus is defined as the ratio of tensile stress to tensile strain, which measures the stiffness of a solid material.