Class 11PhysicsMechanical Properties of SolidsBasic of Elasticity, Stress and Strain relationship and Graphical analysis
EasyPressure and stress have the same unit (and dimension),although they are not the same physical quantity. Why?
(N/A) Pressure is defined as the normal force applied per unit area,which is a scalar quantity because it acts equally in all directions at a point in a fluid.
Stress is defined as the restoring force per unit area developed within a material due to an external deforming force. Since stress depends on the direction of the applied force and the orientation of the surface,it is a tensor quantity (often treated as a vector in basic contexts) because it has both magnitude and direction.
Stress is defined as the restoring force per unit area developed within a material due to an external deforming force. Since stress depends on the direction of the applied force and the orientation of the surface,it is a tensor quantity (often treated as a vector in basic contexts) because it has both magnitude and direction.
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When a force $F_1$ is applied on a metallic wire,the length of the wire is $L_1$. If a force $F_2$ is applied on the same wire,the length of the wire is $L_2$. The original length of the wire $L$ is
The elastic limit of a metal is $\frac{400}{\pi} \text{ MPa}$. If a rod of this metal is to support a $484 \text{ N}$ load without exceeding its elastic limit, the minimum diameter of the rod is: (in $\text{ mm}$)
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Easy
View SolutionMatch List-$I$ with List-$II$ :
List-$I$ List-$II$ $(A)$ $A$ force that restores an elastic body of unit area to its original state $(I)$ Bulk modulus $(B)$ Two equal and opposite forces parallel to opposite faces $(II)$ Young's modulus $(C)$ Forces perpendicular everywhere to the surface per unit area same everywhere $(III)$ Stress $(D)$ Two equal and opposite force perpendicular to opposite faces $(IV)$ Shear modulus
Choose the correct answer from the options given below:
| List-$I$ | List-$II$ |
|---|---|
| $(A)$ $A$ force that restores an elastic body of unit area to its original state | $(I)$ Bulk modulus |
| $(B)$ Two equal and opposite forces parallel to opposite faces | $(II)$ Young's modulus |
| $(C)$ Forces perpendicular everywhere to the surface per unit area same everywhere | $(III)$ Stress |
| $(D)$ Two equal and opposite force perpendicular to opposite faces | $(IV)$ Shear modulus |
Choose the correct answer from the options given below:
DifficultJEE MAIN 2024
View SolutionThe dimensions of stress are equal to
Easy
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