Derivation of Lorentz transformation equations using orthogonal transformations Let us consider two uniformly moving frames of reference where origins coincides at $t=0$. let the source of light is fixed at unprimed frame of reference and emits a pulse of light. The observer fixed in the unprimed frame of reference will observe a spherical wave-front propagating […]
Lorentz Transformation Read More »
The motion of different bodies can be conveniently described if we imagine co-ordinate system attached to a rigid body and the positions of different bodies in space can be described w.r.t. it, then such co-ordinate system is called frame of reference.
Frame of reference : Cartesian coordinate system with Velocity and acceleration Read More »
This lesson is about External and internal forces (Dynamics of system of particles) . This chapter comes under subject Mechanics and is for B.Sc. Physics students. While studying Newton’s laws of motion most of the time we have considered objects (for example planets, projectiles etc..) to be point particles rather then extended bodies. We did
External and internal forces (Dynamics of system of particles) Read More »
This article is about Degree of freedom and constraints in classical mechanics. You can use this article for studying B.Sc, JAM , GATE and CSIR-NET Physics. Definition: – The minimum number of independent variables or co-ordinates required for specifying the position of a dynamical system consisting of one or more particle is called Degree of freedom.
constraints in physics (classical mechanics) with examples Read More »
This article covers topics like Law of conservation of energy, Equation of motion and Form of motion under the effect of central forces.
From equation 4 we consider \[f(r) = – \frac{{du(r)}}{{dr}}\] then this shows that \(f(r)\) is not only a central force but a conservative force. In this condition this equation
Motion Under Central Forces (part 2) Read More »
This article covers an introduction to central forces , equation of motion under central forces and
If the force \(\mathop f\limits^ \to \) acting on a body has following characteristics then it is a central force (i) it depends on the distance between two particles (ii) it is always directed towards or away from a fixed point. Gravitational force is an example of central forces. Mathematically if we consider central point as origin
Motion Under Central Forces (part 1) Read More »
