Question

WHAT IS STRESS AND WHAT IS STRAIN​

Answer 1

Explanation:

Strain is defined as the ratio of change in dimensions to the original dimensions of any object after externally applied force . i.e. Straigh=change in dimensions/original dimensions. And stress is defined as the internal force ( per unit area ) associated with strain.

Answer 2

Stress v/s Strain

Stress:

It is the ratio of the internal force F, produced when the substance is deformed, to the area A over which this force acts. In equilibrium, this force is equal in magnitude to the externally applied force.

Strain:

It is the ratio of the change in size or shape to the original size or shape. It has no dimensions, it is just a number.

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