Author: Physics Notebook

  • Intensity Of Gravitational Field Due To A Thin Spherical Shell At A Point (i) Outside The Shell, (ii) On Surface Of The Shell, (iii) Inside The Shell.

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    Physics Notebook

    (i)At a point outside the shell: Gravitational potential at a point outside rthe thin uniform spherical shell, at a distance , is given by, . Where is the gravitational constant, is the mass of the shell, is the radius of the shell, is the distance from the centre of the shell. The Gravitational Potential Due…

  • The Gravitational Potential Due To A Thin Uniform Spherical Shell At A Point (i)Outside, (ii)At The Surface, (iii) Inside The Shell.

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    Physics Notebook

    Gravitational Potential Due To A Thin Uniform Spherical Shell: Let us consider a thin spherical uniform shell of radius , surface density . Let is a point at a distance from the centre of the shell. To find the potential at the point , let us divide the shell into a large number of thin…

  • Relation Among Young Modulus(Y), Bulk Modulus(K), Modulus of Rigidity, Poisson’s Ratio.

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    Physics Notebook

    There are three types of elastic modulus. These are 1. Young’s Modulus(Y): This is defined as the ratio of longitudinal stress to the corresponding strain within the elastic limit. READ MORE 2. Bulk Modulus(K): This is defined as the ratio of the volume stress to the volume strain within the elastic limit. READ MORE 3.Modulus…

  • What Is Poisson’s Ratio?

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    Physics Notebook

    Poisson’s Ratio: When an object is elongated longitudinally in the direction of the tensile force, then there will be a lateral contraction. this means that the contraction is in a direction perpendicular to the direction of tensile force. The ratio of lateral strain to longitudinal strain within the elastic limit is called Poisson’s Ratio .…

  • What Is Modulus Of Rigidity Or Shear Modulus?

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    Physics Notebook

    Modulus of Rigidity or Shear Modulus: Modulus of rigidity is defined as the ratio of tangential stress to shear strain within the elastic limit. If a tangential force acts on a surface of the area , then the tangential stress is . This effect gives rise to the angle of shear . Then the Modulus…

  • What Are Young’s Modulus (Y) & Bulk Modulus (K)?

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    Physics Notebook

    Young’s Modulus (Y): This modulus is defined as the ratio of longitudinal (tensile or compressive) stress to the corresponding strain within the elastic limit. Elastic Limit : There is a certain limit of the deforming forces up to which the behaviour of a body remains elastic, i.e, it regains its original shape or size after…

  • What Is Hooke’s Law?

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    Physics Notebook

    Hooke’s Law: There is a certain limit of deforming forces up to which the behavior of a body remains elastic. This is called the elastic limit of the material of the body. Within this elastic limit, the stress is proportional to the strain. i.e, , i.e, . This is known as Hooke’s law. The constant…

  • What Is Elastic Limit

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    Physics Notebook

    Elastic Limit : There is a certain limit of the deforming forces up to which the behaviour of a body remains elastic, i.e, it regains its original shape or size after removal of deforming forces. This limit is called the elastic limit of the material of the body.

  • What Are Strain And Stress?

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    Physics Notebook

    Strain: When a force or a system of forces acting upon a body produces a relative displacement between its parts and the change in length, volume, or shape may take place, then the body is said to be under the strain. The strain of a body is measured in the form of dimension per unit…

  • What Is Elasticity?

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    Physics Notebook

    Elasticity: Elasticity is an inherent property by virtue of which a body undergoing a change in length, volume, or shape due to the application of external forces, tends to regain its original length, volume, or shape as soon as the external forces are withdrawn. Bodies that can regain their original conditions completely on withdrawal of…