Solved: PHYSICS Question for NEET

NEET PHYSICSEasy

Unit of stress is:

N/m

N-m

N/m^2

N-m^2

Definition: Stress is defined as the restoring force per unit area developed in a body when it is deformed by an external force .
Formula: Stress ( $\sigma$ ) = Force ( $F$ ) / Area ( $A$ ).
Dimensional Analysis:

The SI unit of Force is the Newton (N).
The SI unit of Area is the square metre (m $^2$ ).
Therefore, the unit of stress is Newton per square metre (N/m $^2$ or N m $^{-2}$ ). This unit is also known as the Pascal (Pa) , .

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