ï»¿ What is 'elastic after effect'? from Physics Mechanical Properties of Solids Class 11 Manipur Board

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What is 'elastic after effect'?

When an external force is applied, the body gets distorted from it's original shape. The body takes some time to regain into it's original shape. Therefore, the delay or the time that is taken for the body to acquire it's original shape after the deforming force is removed is called 'elastic after effect'.
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What is the force of cohesion?

Cohesive attraction or cohesive force is the force of attraction between same types of molecules sticking together.
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What do you understand by intermolecular forces?

Intermolecular force is the force between the molecules of the substance is called intermolecular force.

There is a dipole-dipole interaction between the molecules.
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What is the force of adhesion?

Adhesive force is the attractive force between two unlike molecules. They are caused by forces acting between two substances like electrostatic force (attraction due to opposing charges), mechanical force etc.

E.g., Force of attraction between gum and paper.

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What is the nature of inter-atomic or inter-molecular forces?

Inter-atomic or inter-molecular forces are electrostatic in nature.

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Define interatomic forces and give an example?

The force between atoms of the molecule is called interatomic force.

E.g.The nucleus and electron cloud of a molecule is binded by electrostatic force.
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