Universality of Basic Theories In Physics few basic concepts and laws can explain many different phenomena. For instance, after firing a bullet soldier get sudden jerk, by applying the force on water, swimmer moves forward, rocket push the propellent backward, in response the rocket get pushed forward. All these can be explained with the help […]
Physics
Fundamental Forces in Nature
Force is needed to carry, push or throw object. Or force is needed to change the shape or break the object. On macroscopic level, there are number of forces such as Muscular Force, Friction, Viscous Force of Liquids, and many other. Similarly on microscopic level, there are forces such as Electric Force, Magnetic Force, Nuclear […]
Rutherford’s Model of Atom
Thomson’s model revealed that atom has spherical structure, with positive charge spread all over the sphere and electrons are embedded in it. Also there is equal number of positive and negative charge i.e. atom is electrically neutral. Ernest Rutherford carried out experiments by taking consideration in Thomson’s model and presented more accurate model i.e. Rutherford’s […]
Bohr’s Model of Atom
Rutherford’s model explained that atoms revolve around nucleus in circular path. While revolving, electrons possess kinetic energy . Due to motion, energy from electron is continuously radiated. This suggest that electron must be losing energy continuously while revolving around nucleus. This may lead to fall of electron into the nucleus which will make atom highly […]
Dispersion of Light
Light when passes through prism split into different color components. This phenomena is called dispersion of light. A prism is a transparent glass having two plane surfaces inclined at an angle. White light beam passing through prism split into seven colors – “violet, indigo blue, green, yellow orange and red”. The band of colors which […]
Law of Inertia
Law of inertia was put forward by Galileo. He conducted various experiments and finally explained the law of inertia. Let us discuss Galileo’s experiments. Motion of Object on Inclined Plane Galileo allowed to move the object down the inclined plane. He observed that during motion the object accelerates. In another case, he allowed to move […]
Laws of Motion: Aristotle’s Fallacy
Qualitative Interpretation Of Motion Qualitative study suggests to find the reason behind the action. E.g. Newton studied the fall of apple, and stated the reason as gravitational pull. This is qualitative study. Aristotle’s Fallacy Aristotle was the first scientist who studied the phenomena and gave his qualitative interpretation. He was a greek thinker in time […]
What is Chain Reaction ?
When a heavy nucleus breaks into daughter nuclei thereby releasing energy , the process is called fission . A very important and interesting feature of neutron-induced fission reaction is the chain reaction. Nuclear fission is carried out by bombarding a slow moving neutron in nucleus of heavy element such as U-235 or thorium Th-232. As […]