Question

define stress write its unit and dimensional formula

Answer 1

Stress is a internal restoring force set up per unit cross sectional area of the body. when the length of body increases in the direction of deforming force.
$si \: unit =$
N/m2

$dimensional \: formula$
ML^-1T^-2

Answer 2

Answer:

The restoring force per unit area is known as stress. If F is the force applied and A is the area of cross section of the body, Magnitude of stress =FA Its SI unit is Nm-2 or Pascal (Pa). Its dimensional formula is (ML-1T-2).