PhysicsUses of Satellites Uses of satellites: (i) Satellite communication: Communication satellites are used to send radio, television and telephone signals over long distances. These satellites are fitted with…
PhysicsExpression for the Potential Energy The potential energy of a body is the energy stored in the body by virtue of its position or the state of strain. Hence water…
PhysicsWhat is Energy? Energy can be defined as the capacity to do work. Energy can manifest itself in many forms like mechanical energy, thermal energy, electric energy, chemical…
PhysicsExperimental Verification of Lami’s Theorem Lami’s theorem states that, if three concurrent forces act on a body keeping it in Equilibrium, then each force is proportional to the sine of…
PhysicsExplain Lami’s Theorem Lami’s theorem states that if three forces acting at a point are in equilibrium, then each of the force is directly proportional to the sine…
PhysicsWhat is Null Vector or Zero Vector Null vector or zero vector: A vector whose magnitude is zero, is called a null vector or zero vector. It is represented by Ȏ and…
PhysicsDifferent types of Vectors Here describe different types of Vectors: (i) Equal vectors Two vectors are said to be equal if they have the same magnitude and same direction,…
PhysicsRepresentation of Vector Vector quantifies are often represented by a scaled vector diagrams. Vector diagrams represent a vector by the use of an arrow drawn to scale in…
PhysicsWhat is Acceleration? If the magnitude or the direction or both of the velocity changes with respect to time, the particle is said to be under acceleration. Acceleration…
PhysicsWhat is Uniform Velocity? Uniform Velocity: A particle is said to move with uniform velocity if it moves along a fixed direction and covers equal displacements in equal intervals…