Category: basic physics

  • Cross and Dot product of vectors.

    Cross and Dot product of vectors.

    Someone asked a very interesting question on the role of vectors in Physics. He was curious to know if dot product of vectors is natural but vector product is just syncretism, — that is make shift or unnatural manipulation. Every vector can be resolved into two components. The cosine and sine components (any two vectors…

  • Inherent ability = difficulty * accomplishment.

    All of Physics is this “Inherent ability = difficulty * accomplishment”. Thats just intuitive but can easily be seen to correspond mathematically with the Principle of least action. First the edifice: whats the problem? The problem is given you move in straight line when every direction is same around you, which direction will you chose?…

  • Schrodinger Equation; Concepts and Problems in Quantum Mechanics.

    A long and technical discourse on Quantum Wave Function. A 64 slide presentation styled discourse on the Quantum Wave Function. It consists of detailed solution of 5 important and interesting problems, apart from a threadbare discussion of the concepts.

  • Uncertainty Principle and Photography !

    why a moving object becomes fuzzy when you take its picture. Speed bears an uncertainty with momentum (hence energy ) just like time with energy and position with momentum. But for photons which are always ultra-relativistic we should not talk about its positions. Due to speed (relative motion of objects such as your and moving…

  • Addendum to Coriolis Force; Definition of Centripetal Force.

    We need to understand first that Force can be categorized into two types. One is called tangential or collinear force. This component of the force is always along the direction of motion and changes speed of an object. It can change direction once the velocity of the object has become zero. Its NOT centripetal force.…