Question

Within the elastic limit of a material, modulus of elasticity is ratio of:
1. strain to stress
2. area to strain
3. stress to area
4. stress to strain

Answer 1

Correct Answer - Option 4 : stress to strain

CONCEPT:

• Modulus of elasticity: The quantity which measures the resistance to being deformed elastically when a stress is applied to an object is called modulus of elasticity. It is the ratio of stress to strain.
  • It is denoted by E. 

• Shear modulus: The ratio of shear stress to shear strain is called shear modulus.
• It is denoted by G.
• Bulk modulus: The measure of how resistant a substance is about its compression is called bulk modulus.
  • It is the ratio of the infinitesimal pressure increase to the resulting relative decrease of the volume.
  • It is denoted by K.