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Simple echo. When you are in the mountain and yodel, you hear several echos which don't come simultaneously, but one after the other. This is so because the sound travels to the next peaks, is reflected by the rocks, and comes back. The distance from you to the different peaks is different, but sound travels on constant speed in air, so the different echos don't come all at once.

2007-02-22 19:18:45 · answer #1 · answered by Rumtscho 3 · 0 0

the very fact that you can hear a person talking in the next room is due to sound reflection. i remember this little experiment they do to show that sound reflects.
A plane wooded plate, with two hollow cylinders taped at right angles to each other and 45degrees the wooden base. speak in one tube, and an observer can clearly hear you in the other tube. Not that its very far that you cannot hear otherwise, but it will be very clear, as if he you were speaking in his ear itself.

Another common example is the echo, which quite simply is the multiple reflection of sound off of a surface.

2007-02-22 19:18:48 · answer #2 · answered by Anonymous · 0 0

there` s something called a ripple tank which is rectangular..
you dip the bob inside the tank and waves will be formed. you place an obstacle, e.g a block of wood and you measure the angle of reflection and the angle of reflection..the frequency will remain the same
it obeys

2007-02-22 19:15:47 · answer #3 · answered by ziyaad rcc 2 · 0 0

go atop a mountain
or a place where walls are separated by atleast 11 metres
asu speak, u hear echos
this is nothing but sound reflection

2007-02-22 21:12:01 · answer #4 · answered by Deranged Soul.. 2 · 0 0

sound proof rooms or walls....

2007-02-22 19:14:50 · answer #5 · answered by CHR!S 2 · 0 0

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