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Shogun:
alright this depends on the size of gap and size of wavelength,this whole thing is known as diffraction

if size of gap is the same size of wavelength (u gotta measure them with ure scale or the giv u this info on the question): the wave will pass through the gap with a circular pattern.

if size of gap is bigger than the wavelength of the wave: the wave should pass throught in a wide wave around the ages pattern.

it would go like this:
but be sure tht ure wave (outside the gap) must have the dame wave legnth as the wave before the gap, cuz wave length doesnot change , speed does not change, frequency does not change, only direction changes

hope his helps..

Friends:

--- Quote from: Ibiza279 on June 03, 2009, 09:52:01 am ---ok its simple

when water waves pass thru a gap, if the gap's length is equal to the wave's wavelength then there will b a spherical diffraction,
but if the wavelength of the wave is lower than the gap of the length then the waves formed will hav defraction on their extreme edges, they will look like straight lines that are bent on the edges.

we don't hav the diffraction of waves such that the length of the gap is smaller than the length of the wavelength.

remember the top two points all the best

--- End quote ---

Ok I got it.thanx man
+rep


Thanx Shogun

Ibiza279:

--- Quote from: sgvaibhav on June 03, 2009, 09:49:22 am ---guys i was taught there are two types of sound graphs u need to know

one is displacement/time   and the other is displacement/lenth.

can anyone elaborate more about these two types of graphs.

--- End quote ---

hey call them speed/time and distance/time graph, thats much more easier to understand

as fer the speed time graph, area under the graph gives u the distance travelled.

the distance time graph jus tells u if the cars on constant speed or accelerating etc.

i guess thats all about it.

but be sure to memorise the three velocity formulas

they r

v=u+at

v^2=u^2 + 2as

s = ut + 1/2at^2

where " s " is the displacement

do counter check with ur books or online sources if they r correct :D lol

esso:
can any one give me notes about radiation....
a bit difficult...
thanx in advance

Ibiza279:
wat ever u don't knw bout radiation, ask us here n we ll help :)

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