Question

what is modulus of elasticity ?write it's unit and dimensional formula.​

Answer 1

Explanation:

Definition:-

An elastic modulus is a quantity that measures an object or substance's resistance to being deformed elastically when a stress is applied to it. The elastic modulus of an object is defined as the slope of its stress–strain curve in the elastic deformation region: A stiffer material will have a higher elastic modulus.

Unit:-

Units of Modulus of Elasticity/Young's modulus are: Nm-2 or Pa. The practical units used in plastics are megapascals (MPa or N/mm2) or gigapascals (GPa or kN/mm2). In the United States customary units, it is often expressed as pounds (force) per square inch (psi).

Dimensional Formula:-

Therefore, the modulus of elasticity is dimensionally represented as [M1 L-1 T-2].