(D) The interatomic potential energy $U(R)$ for neutral atoms or molecules at large distances is dominated by the van der Waals attraction,which arise

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(D) The interatomic potential energy $U(R)$ for neutral atoms or molecules at large distances is dominated by the van der Waals attraction,which arises from induced dipole-induced dipole interactions (London dispersion forces).According to the theory of these interactions,the potential energy $U$ is inversely proportional to the sixth power of the interatomic distance $R$.Mathematically,this is expressed as $U(R) \propto R^{-6}$.Therefore,the correct option is $D$.

Class 11 Physics Mechanical Properties of Solids Basic of Elasticity, Stress and Strain relationship and Graphical analysis

Medium

According to $C.E.$ van der Waals,the interatomic potential varies with the average interatomic distance $(R)$ as

A
$R^{-1}$
B
$R^{-2}$
C
$R^{-4}$
D
$R^{-6}$

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Class 11 Questions

Class 11

Physics Questions

Chapter

Mechanical Properties of Solids

Subtopic

Basic of Elasticity, Stress and Strain relationship and Graphical analysis

The length of a metallic wire is $\ell_{1}$ when the tension in it is $T_{1}$. It is $\ell_{2}$ when the tension is $T_{2}$. The original length of the wire will be ...... .

DifficultJEE MAIN 2021

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Match 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

DifficultJEE MAIN 2024

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Which one of the following is the weakest kind of bonding in solids?

EasyAIPMT 1992

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For what reasons can the elastic behavior of a solid body be explained?

Easy

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The increase in length is $l$ of a wire of length $L$ by the longitudinal stress. Then the stress is proportional to

Easy

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According to $C.E.$ van der Waals,the interatomic potential varies with the average interatomic distance $(R)$ as

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The length of a metallic wire is $\ell_{1}$ when the tension in it is $T_{1}$. It is $\ell_{2}$ when the tension is $T_{2}$. The original length of the wire will be ...... .

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