Answer Posted / mech idiot

When th force or load acting on the fluid(pnuematic or
hydraulic)per unit area is known as PRESSURE.. its purely
subjected to fluids........

when th force or load acting on the object(solid) within th
elastic limit of an object create internal resistance to
resist th apply load. that internal resistance is known as
STRAIN for per unit area of that object.. Its mainy
subjected to solids...

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