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it is based on the photovoltaic effect one of the semiconductor regions is made so thin that the light incident on it reaches the p-n junction and
at high reverse voltage due to high electric field the minorities charge carriers while crossing the junction acquires very high velocities a chain
when reverse bias is enhanced the electric field at the junction also enhances at some stage the electric field becomes so high that it breaks the
as electron hole pair because of thermal collisions is continuously formed in the depletion region these are a regular flow of electrons in the
because of concentration difference holes or electron try to vary from their side to other side only these holes or electrons cross the junction
i it is also known as impure semiconductorii the phenomena of adding impurity is known as
a pure semiconductor is known as intrinsic semiconductor it has thermally formed current carriersi they have four electrons in the outer part of
1 holes works as virtual charge although there is no charge on holes2 effectual volume of hole is more than electron3 mobility of hole is fewer than
the higher power level band is called as the conduction bandi it is also called as empty band of minimum energyii this band is partially filled by
the energy band formed by a series of energy levels having valence electrons is called as valence band at 0 k the electrons fulfill the energy levels
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in two-dimension motion a body go in a plane eg a particle rolling in a circle a cricket ball caught by a fielder in the first case the body can go
the real length of path traversed by a body in a sub interval of time is called as distance it is the real path travelled by an object among its
displacement - the modification in position of a body in a certain direction is known as displacement it is a vector function and its unit in si
motion of an object in a plane is called two dimensional 2-d motions for 2-d motion acceleration or velocity can be explained by two elements in
motion of an object in a straight line is called one dimensional motion the location of a particle in one dimensional motion can be explained by only
the part of mechanics which works with the explanation of the motion of an object without taking reason of the origin is known kinematics while the
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a body has a weight w kg on the surface of earth what will be its weight on the surface of moon in gravitational units of force and si unitsans mass
cannon of mass 5m having a shell of mass m is at rest on a smooth horizontal ground fires the shell with its barrel at an angle a with the horizontal
clear definitions of and rationale for defining variables asexplanatoryconfoundingif requiredeffect modifying variables if requiredand rationale if
1brief definitions of the study design sampling strategy and outcome variablesstudy design cross sectional study is carried out at just one point in
1a statement of the scientific hypothesishypotheses you have decided to address in your analyses with a rationale for eachfrom the rational of the
two grating a and b have the same width of the ruled surface but a has greater number of lines giving reasons compare in two casesa intensityb width
1 what do you understand by diffraction of waves explain why the diffraction of sound is more easily observable than the diffraction of light2 the