Correct Answer - Option 1 : Stiffness
Explanation:
Stiffness:
Stiffness is the resistance to the elastic deformation of the body under the action of the external load. It is denoted by k, and mathematically it can be expressed as,
\(k = \frac{F}{x}\)
where F is applied force and x is deflection or deformation in the body.
Brittleness:
It is the characteristic of the material which shows very little deformation before going to the fracture.
Toughness:
It is the ability of the material to the absorbed energy without any fracture.
Resilience:
It is the ability of the material to absorb the energy up to the elastic limit.
