A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Compound
Pendulum
A rigid body with distributed mass able to
freely pivot about a horizontal axis, which doesn’t coincide with center of
gravity is called compound pendulum.
Compound
It is combination
of two or more chemical elements formed by chemical bonding. Chemical elements
are held together in a defined spatial arrangement by chemical bonds.
Compressive
Strain
When longitudinal
stress is applied, if there is decrease in length, it is called compressive
strain.
Compton
Effect
When a photon of
energy ‘hν’ collides with the
electron, some of the energy is given to this electron. Due to this energy, the
electron gains kinetic energy and hence the scattered photon will have lower
energy or lower frequency or longer wavelength than the incident one. The
phenomenon is called as Compton Effect.
Compton
Scattering
It is type of
interaction of gamma rays with free electrons of absorbing material. The
electrons binding energy is very less compared to photon energy. The collision
is elastic in nature. Part of energy of incident photon is transferred to
electron. Another scattered photon of lower energy gets emerged.
Concave
Lens
It is a lens which diverges or spreads
light rays travelling parallel to it.
Concentration
The relative
content of a particular element or constituent with in an alloy, usually
expressed in weight percent or atom percent.
Condensation
Phase change of
gaseous vapor into liquid due to reduction of temperature or compression.
Conductance
The reciprocal of
resistance, is measured by ratio of current flowing through a conductor to the
difference of potential between its ends.
Conduction Bond
The range of electron energies (electron orbitals) generally outermost orbitals, in
which electrons move freely with in atomic lattice of material as delocalized
electrons.
Conduction
Mechanism of heat
transfer due to vibration amplitudes of molecules and atoms present in solids.
Conductivity
(Electrical)
It is inverse of electrical resistivity and
thus characteristic of substance.
or
It
is measured by quantity of electricity transferred across unit area, per unit
potential gradient per unit time. Siemens
per meter is the unit for this physical quantity.
Conductivity
The
proportionality constant between current density and applied electric field is
called conductivity. It is measure of capability of conducting an electric
current for a material.
Conductor
Substance or
object which permits flow of electrons with less resistance is called as
conductor. In terms of crystal
structure, they are materials in which there is overlap of conduction and
valence bands.
Cone
of Friction
A cone in which
the resultant force exerted by one flat horizontal surface on another must be
located when both surfaces are at rest, as determined by the coefficient of
static friction.
Configuration
Space
The configuration
of the system of N particles moving freely in space may be represented by
position of a single point in 3N dimensional space which is called
configuration space of the system.
Conical
Pendulum
If the bob of a
simple pendulum is pulled to a side and whirled to move along a circle in
horizontal plane, the string sweeps a cone and this arrangement is called
conical pendulum.
Conservation
of Angular Momentum
When no external
torque acts, then angular momentum of rotating system remains conserved.
Conservation
of Momentum
When no external
forces acts on system, its linear momentum is constant.
Conservative
Forces
Forces having
property in which work done in displacing an object between two points in space
is independent of path taken.
Constancy of Speed of Light
Observers in all un-accelerated reference frames measure the speed of light (in vacuum) from any source as same. The constant is 3 x 108 m/sec. Remarkable property is referred to as constancy of speed of light.
