Class 11PhysicsMechanical Properties of SolidsBasic of Elasticity, Stress and Strain relationship and Graphical analysis
Medium$A$ rod of length $2 \ m$ rests on a smooth horizontal floor. If the rod is heated from $0^\circ C$ to $20^\circ C$,find the longitudinal strain developed? $(\alpha = 5 \times 10^{-5} / ^\circ C)$
- A$10^{-3}$
- B$2 \times 10^{-3}$
- C$0$
- DNone
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The property of a material which opposes the change in shape,volume,or length is called
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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:
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$(a)$ The magnitude of Young's modulus is proportional to the increase in length.
$(b)$ Breaking stress is known as elasticity.
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$(a)$ The magnitude of Young's modulus is proportional to the increase in length.
$(b)$ Breaking stress is known as elasticity.
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