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huygens wave theoryhuygens wave theory is not correct in all respects2 it assumes simply that light energy is propagated as a wave3 at the time of
concept of wave front the basis of huygens wave theory of light is his principle concerning construction of wave frontwhen a disturbance from
microprocessor a combination of ics cal led a microprocessor the data is processed in the microprocessor according to the instructions given
detection receiver the antenna receiver these modulated waves from different transmitting stationschannel selector selects the desired signals the
the amplified video signals are amplitude modulated using a suitable rf carrier wave in a transmitter called lsquoam picture transmitter similarly
production of audio and video signalsiconoscope is a type of camera consisting of a cathode ray beam and a photoelectric cell the picture is
majority and minority charge carriers a pure semiconductor has equal number of holes and electrons but an extrinsic semiconductor has majority
electrons and holes in semi-counductormetals have free electrons available in conduction band for conduction of electric current as the valence
historical development of atomic modelsin olden days there was an idea that all matter is made of tiny indivisible particleswhen thomson discovered
the decrease of mass is related to the binding of the individual particles together inside the nucleustherefore every stable nucleus has a mass
rutherfordrsquos atomic model failurerutherford proposed that the electrons circulate around the nucleushowever according to electromagnetic theory
for what value of kthe following system of equations have infinite solutionskx 5y -k-5020x ky -
natural and forced vibrationswhen we strike a tuning fork with a rubber hammer it vibrates with certain frequencythe frequency does not change even
to determine the acceleration due to gravity using a simple pendulumapparatus pendulum meter scale stand stop watch vernier callipersprocedure1 the
artificial satellites1 satellites help to develop reliable communication links between different countries separated by large distances on the
how do i solve this equation the left side is a matrix 0 0 -1 3 x 0 x2 2 0
a body is constrained to move in a path y 1 x2 and its motion is resisted by friction the co-efficient of friction is 03 the body is acted on by a
the record high temperature for asheville north carolina was 99 degree fahrenheit the low record was -17 degrees fahrenheit what is the difference
the pd at the feeder end of a two wire dc distributor is 600 volts two loads are connected to the distributor at distances of 600 feet and
thermodynamics and energy 2 types of energy kinetic and potential work is the transfer of energy from one place to another energy isnt lost only
biological catalysts agrave speed up chemical reactions in the body without being consumed in the process reduce the activation energy needed
diesel-like liquid obtained from materials of biological origin is called biodiesel biodiesel can be obtained i either from lipids accumulated plants
xenobiotic compounds are man-made chemicals that are present in the environment at unnaturally high concentrations the xenobiotic compounds are
use of micro-organisms to control insect pests pathogens or weeds constitutes biological control and the biological agents employed are called
plants are the source of a large variety of biochemicals which are metabolites of both primary and secondary metabolism but secondary metabolites