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Physical Chemistry

Numerical Problems on Percentage by Mass

Science > Chemistry > Solutions and Their Colligative Properties > Percentage Composition In this article, we shall learn to calculate percentages by mass and percentage by volume of a solution. Problems on Percentage by Mass Example – 01: 6 g of urea was dissolved in 500 g of water. Calculate the percentage by mass of […]

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Physical Chemistry

Solid and Liquid Solutions

Science > Chemistry > Solutions and Their Colligative Properties > Solid and Liquid Solutions In this article, we shall study solid and liquid solutions and the concept of solubility curves. A solution of Solids in Liquids:  The dissolution of any substance in a liquid to form a solution is governed by the basic principle that […]

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Physical Chemistry

Solutions and Their Types

Science > Chemistry > Solutions and Their Colligative Properties > Solutions and Their Types In this article, we shall study the concept of solutions and their types based on phases, composition, etc. The Terminology of Solutions: Solution: A solution is a homogeneous mixture of two or more than two or more components. A solution has […]

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Physics

Principles of Parallel and Perpendicular Axes

Science > Physics > Rotational Motion > Principles of Parallel and Perpendicular Axes In this article, we shall study the principle of parallel axes and the principle of perpendicular axes and their applications. Principle of Parallel Axes or Parallel Axes Theorem: Statement : The moment of inertia of a rigid body about any axis is […]

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Physics

Kinetic Energy of Rotating Body and Torque Acting on it

Science > Physics > Rotational Motion > Kinetic Energy of Rotating Body and Torque Acting on it In this article, we shall study kinetic energy of rotating body and torque acting on it. Kinetic Energy of a Rotating Body: Consider a rigid body rotating about axis passing through point O and perpendicular to the plane […]

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Physics

Moment of Inertia

Science > Physics > Rotational Motion > Concept of Moment of Inertia In this article, we are going to study important physical quantity related to the rotational motion of the body called the moment of inertia and its significance. Rigid Body: A rigid body is one whose geometric shape and size remains unchanged under the […]

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Physics

Numerical Problems on Current Through Toroids or Rowland Ring

Science > Physics > Magnetic Effect of Electric Current >Numerical Problems on Toroids or Rowland Ring Example 01: A Rowland ring (toroid) of ferromagnetic material of a mean radius 15 cm has 3000 turns of wire wound it. The relative permeability of the material is 1000. What is the magnetic field in a core when […]

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Physics

Polaroids and Their Applications

Science > Physics > Wave Theory of Light > Polaroids In this article, we shall study the use of the phenomenon of polarization of light, principle, construction, and working of polaroids. Double Refraction: In the case of some crystals like calcite or quartz, a single ray of unpolarized light from a point source of light […]

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Physics

Polarization of Light

Science > Physics > Wave Theory of Light > Polarization of Light In this article, we shall study the concept of polarization of light, Brewster’s law associated with it. Ordinary Light: Light waves are transverse in nature. The direction of its vibration is in the plane which is perpendicular to the direction of propagation of […]

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Physics

Numerical Problems on Wave Theory of Light – 02

Science > Physics > Wave Theory of Light > Numerical Problems on wave Theory of Light In this article, we shall study to solve the problems on the calculation of the refractive index, angle of refraction, the wavelength of light and wavenumber of waves using snell’s law and the definition of the refractive index of […]