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Which one of the following physical quantity has the same unit as that

June 1, 2025 by rawan239

Which one of the following physical quantity has the same unit as that of pressure ?

Angular momentum

Stress

Strain

Work

This question was previously asked in

UPSC NDA-1 – 2017

Download PDF Attempt Online

Stress has the same unit as that of pressure.

Pressure is defined as force per unit area (P = F/A). Its unit is Newton per square meter (N/m²), also known as Pascal (Pa). Stress is also defined as force per unit area, representing the internal force per unit area within a material resisting deformation (Stress = F/A). Therefore, stress also has the unit of N/m² or Pascal (Pa).

Angular momentum is the product of moment of inertia and angular velocity; its unit is kg⋅m²/s or J⋅s. Strain is a dimensionless quantity, defined as the ratio of change in dimension to the original dimension (e.g., change in length/original length). Work is defined as force times distance; its unit is Newton-meter (N⋅m) or Joule (J). Out of the given options, only stress shares the same unit (N/m² or Pa) with pressure.

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