Correct Answer - Option 1 : Pressure
CONCEPT:
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Stress: The restoring force per unit area is called stress.
\(\rm Stress = {F \over A}\)
Where F is the force applied and A is the area of cross-section of the body.
The unit of stress is given by:
\(\rm stress = {[F]\over [A]}={Newton\over meter^2}=N/m^2 ~or ~Pascal\)
EXPLANATION:
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Option 1: The unit of Pressure (Force per unit area) is given by:
\(\rm Pressure = {[F]\over [A]}={Newton\over meter^2}=N/m^2 ~or ~Pascal\)
The units of pressure are the same as the unit of stress.
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Option 2: The unit of volume is meter3 or liter.
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Option 3: The unit of energy is Joule.
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Option 4: The unit of force is Newton.
- So the correct answer is option 1.
