Deduction of Newton’s Law of Gravitation from Kepler’s Law Newton’s Law of Gravitation is states that in this universe attracts every other body with a force which is directly proportional to the product of their masses and is inversely proportional to the product of the squares of the distance between them. Newton’s Law of Gravitation Read more about Deduction of Newton’s Law of Gravitation from Kepler’s Law[…]
Equivalence of Inertial and Gravitational Masses The mass of a body is the quantity of matter possessed by a body. There are two different concepts about the mass of a body. Those are Inertial and Gravitational Masses. Inertial mass of a body is related to its inertia of linear motion, and is defined by Newton’s Read more about Equivalence of Inertial and Gravitational Masses[…]
Interatomic Force Constant Behaviour of solids with respect to external forces is such that if their atoms are connected to springs. When an external force is applied on a solid, this distance between its atoms changes and interatomic force works to restore the original dimension. The ratio of interatomic force to that of change in Read more about Interatomic Force Constant[…]
Force on Surface Immersed in a Liquid and Centre of Force Consider a rectangular plane surface of area A held vertically in a static liquid of density ρ. Let, top and bottom edges of the plane surface be at vertical depths of h₁ and h₂ respectively below the free surface of the liquid. The pressure Read more about Force on Surface Immersed in a Liquid and Centre of Force[…]
Kinetic Energy of Rolling Wheel Energy of a Rolling Body If an object is rolling without slipping, then its kinetic energy can be expressed as the sum of the translational kinetic energy of its centre of mass and the rotational kinetic energy about the centre of mass. The translational kinetic energy of a rolling body Read more about Kinetic Energy of Rolling Wheel Energy of a Rolling Body[…]
Kinetic Energy of Two Particles System Relative to Centre of Mass Frame Consider two particles of masses m₁ and m₂ having velocities v₁ and v₂. Total kinetic energy of two particle system is the sum of kinetic energy of system with respect to the centre of mass and kinetic energy of the centre of mass. Read more about Kinetic Energy of Two Particles System Relative to Centre of Mass Frame[…]
Velocity – Time Graph of Various Types of Motions of a Particle Particle is moving with a Constant Velocity: If a particle is moving with a constant velocity then, acceleration (a) is zero. Let at any time velocity of the particle is u. Since, velocity remains constant so at any time velocity remains same. Hence, Read more about Velocity – Time Graph of Various Types of Motions of a Particle[…]
Relative Motion in One Dimension Consider the motion of a car moving towards right and two observers O₁ and O₂ are coming from opposite directions as shown in below figure. Observer O₁ finds that the car is moving slower while observer O₂ finds that the car is moving faster in comparison to when observer is Read more about Relative Motion in One Dimension[…]
Equation of Trajectory A trajectory is described as a position of an object over a particular time. It is the path taken up by a moving object that is following through the space as a function of time. A bullet fired from gun is an example of trajectory motion. A projectile is thrown with velocity Read more about Equation of Trajectory[…]
Wavelength of Photon emitted in De – Excitation According to Bohr, when an atom makes a transition from a higher energy level to a lower level, it emits a photon with energy equal to the energy difference between the initial and final levels. If Et is the initial energy of the atom before such a Read more about Wavelength of Photon emitted in De – Excitation[…]