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Clarify the difference between stress and pressure. |
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Answer» Solution :PRESSURE is force per UNIT area. Both pressure and STRESS having same dimensions but they are not a same physical quantity. When the force applied perpendicular to the SURFACE then the force produce per unit area is known as pressure. Stress is also a force per unit area but is different at every different area of the body. For example: As shown in figure, stress is on the cross-section but it is not on the side of the rod. 
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