Question

echo and reflection of sound....


Explain it ....

Answer 1

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Answer 2

$\huge\bold{Echo\:and\: reflection\:of\: sound}$

=>If the Echo is heard with in this time interval the original sound at its echo cannot be distinguish. show the most important condition for hearing and echo is that the reflected sound should reach the year only after a lack of at least 0.1 second after the original sound dies of.

=>this is the toys minimum distance between a source of sound and the reflector. So, if the obstacle is at a distance of 17 m at least the reflected sound or the Echo is heard after 0.1 second distinctly .so, following condition could be listened for formation of echo.

=>the size of the optical reflector must be larger compared to the wavelength of the incidents should . the distance between the source of sound and the reflector should be at least 17 m the intensity aur loudness of the sound should be sufficient for the reflected sound reaching the year 2b audible the original sound should be of shorter duration