CLASSIFICATION OF COLLOIDS
Colloids may be broadly classified into two categories
LYOPHILIC COLLOIDS
As the name implies ( lyophilic meaning solvent loving) are colloids which can be readily obtained by simply shaking the substance in a suitable solvent or in some cases warming the substance in the solvent. These colloids have strong interactions with the dispersion medium. Thus […]
UNCERTAINITY PRINCIPLE (principle of indeterminism)
This principle, discovered ion 1927 by Werner Hisenberg can be stated as “It is impossible to specify at any given instant both the position and momentum of the electron”.
An explanation of the uncertainty is that in order to locate a particle exactly, an […]
WAVE LIKE BEHAVIOUR OF LIGHT
“Is light a wave or a stream of particles?” The fact is that light exhibits behaviors which are characteristic of both waves and particles. Here the focus will be on the wave-like nature of light.
Light exhibits certain […]
ELECTROSTATICS
COULOMB’S LAW
this law was published by Charles Coulomb in 1785. according to this law, ‘ the force of attraction between two charged particles is given by
F = q1q2/4pe0d2
here e0 is the permittivity of the free space. this force is referred to as […]
BEATS
Wave interference is the phenomenon which occurs when two waves meet while traveling along the same medium. The interference of waves causes the medium to take on a shape which results from the net effect of the two individual waves upon the particles of […]
GENERAL EXPRESSION FOR A PROGRESSIVE WAVE IN A NON DISPERSIVE MEDIUM
A non dispersive medium is one in which the properties of the waveform with regards to the propagation of the wave remains same such that the wave propagates without a change in the shape of the waveform. In […]
SYSTEMS OF PARTICLES
What is center of Mass?
The terms “center of mass” and “center of gravity” are used synonymously in a uniform gravity field to represent the unique point in an object or system which can be used to describe the system’s response to external forces and torques. […]
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