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Mechanical Properties of Solids — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsMechanical Properties of Solids1 Mark
MCQ
Elasticity is shown by materials because inter$-$atomic or inter$-$molecular forces:
  • A
    Increases when a body is deformed.
  • B
    Decreases when a body is deformed.
  • C
    Remains same when a body is deformed.
  • ✓
    Becomes non$-$zero when a body is deformed.
✓

Answer

Correct option: D.
Becomes non$-$zero when a body is deformed.
When a body is deformed, atoms/molecules are displaced from their equilibrium positions $(F = 0)$.
As a result, there is a force $(\text{F}\not=0)$ acts between them to restore their position.

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