As the pulse in figure travels, each disturbed element of the string moves in a direction perpendicular to the direction of propagation. Figure... View Article
In the eighteenth centuries of Thomson very little is known about atom. Thomson was the first to prove that the atom divisible into much smaller... View Article
Rutherford model was based on the number and reflecting angle of the alpha particle (helium ion). The reflecting is because of the repulsion... View Article
Objections to Thomson model of an atom: i) It is only a proposal without any valid experimental observation. ii) Cathode ray experiments with... View Article
Thomson postulated that atom is: i) A spherical ball like substance with an average radius of about 10-10 ii) The positive charge of the atoms... View Article
Answer: Thomson atomic model was proposed by William Thomson in the year 1900. This model explained the description of an inner structure of the... View Article
Thomson passed a very high electric charge in a vacuum tube containing different gases. He observed a flow of identical negatively charged... View Article
The paramagnetic materials will be in its magnetic state after a fixed temperature this particular temperature is called Curie temperature. The... View Article
Magnetic material can be classified as paramagnetic diamagnetic and ferromagnetic substances on the basis of their magnetic susceptibility.... View Article
Magnetic susceptibility gives the measure of a quality with which a material can be magnetized by magnetizing field. It is the ratio of two... View Article
It is a possibility that helium ion combine with electrons of gold atom to produce He+ and neutral gold atoms. Presence of such reduced helium... View Article
Rutherford accepted Thomson's model, of spherically shaped atom. But the concept of embedded electrons on a positively charged sphere was... View Article
Rutherford experiment, involves the collision of the positively charged helium ion moving with kinetic energy. The effect on the subatomic... View Article
In, Thomas model atom, the positive charge is distributed over a spherical shell of the atom. So, the moving alpha particle will not find a... View Article
Important conclusions from the Rutherford experiment were drawn from the number and angle of reflection of the helium ions from the incident... View Article
Defects of Rutherford's model of atom: i) Electron rotating around the nucleus is only a suggestion without any experimental proof. ii) A... View Article
Rutherford model of atom: i) Atom contains a dense positively charged core of protons called nucleus. ii) Mass of the atom is present only in... View Article
