Science and humans..

this is a very fking lame post.. please dont continue to read this post unless u are really uberextremlyveryvery bored, then u may continue..

what i think bout waves and humans..
bout the waves fact i am not sure wether it's correct or not..cause i dont really remember..

a wave consist of particles that undergoes rarefaction and compression..
it has a constant frequency throughout a period of time..
take a load,O tht is hung vertically to the wall..
the load was pulled wit a force and the load start to oscillate..
then another load, A is pulled wit the same condition as O..
if a graph is plotted.. u can understand it's characteristic more..

if..both wave is a progressive wave, which have the same frequency, speed and amplitudes..but travelling in opposite direction superpose, the resultant wave contains particles which are always stationary.. thus this is called as stationary wave..

if.. both wave is a progressive wave too, wit same condition as above but moving in the same direction and superpose, the resultant wave has a higher amplitude and this is call the contructive interference..

now talking bout beat, it happens when 2 sound which are slightly diff in freq, f and are played together simultaneously, the resultant intesity will vary periodically frm max to min.

dont think anyone will understand the meaning at all..
wht i think is tht.. fr a wave to formed it need to abide some of it's conditions..
fr example.. there are repertoires of waves produced in the whole world..
fr the wave i am talking bout, it's diff frm others..
graph plotted only shows wht the wave wanna show to the observer..
but the graph plotted cant show the observer wht's the real property tht the wave are..
fr example wht particles are involved and wht is the ray given out..
the wave only shows the graph tht observer needs to knw..
to knw more bout the properties of wave it need to be studied.. but some graphs
gives explanation at the side of the graph..

somehow this graph tht is observed has a condition in * at the very bottom of the question..
which it actually go against the flow of the questions and the properties tht is showed by the graph.. if the observer never actually saw the *note and refer to the question back.. then the observer will misinteprete the meaning of the question and thus the ans given by the observer is totally wrong..even it seems tht the observer's ans i actually right..

so it teaches tht sometime referring to the questions properly till it is very clear on wht the graph shape is like this wil only help to give a correct ans.. if not.. even the correct ans will also be the wrong ans.. enen

THX fr reading and confuse ur mind..XD