state 2 conditions for echo to be heard . bats cannot see still they catch their prey . explain
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Answered by
129
Two conditions for echo to be heard are-
the distance between the origin of sound and reflecting object much be atleast 17m.
And the reflecting object must be bigger then the wavelength of the sound.
Bats cannot see so the produce a type of sound and listen to it's echo and hence locate and catch its prey
the distance between the origin of sound and reflecting object much be atleast 17m.
And the reflecting object must be bigger then the wavelength of the sound.
Bats cannot see so the produce a type of sound and listen to it's echo and hence locate and catch its prey
Answered by
162
Reflection of sound is known as echo .
The two conditions for echo to be heard are :
1.) The min distance b/w sourrce and reflecting surface should be 17.2 metres.
2.)To hear a distinct echo, The interval b/w Original and reflected sound must be 0.1 sec.
Bats can not see still they catch their prey as they produce ultrasonic sound waves.This ultrasound is reflected back to the bat if their is any obstacle in its way and thus bats catch their prey..
The two conditions for echo to be heard are :
1.) The min distance b/w sourrce and reflecting surface should be 17.2 metres.
2.)To hear a distinct echo, The interval b/w Original and reflected sound must be 0.1 sec.
Bats can not see still they catch their prey as they produce ultrasonic sound waves.This ultrasound is reflected back to the bat if their is any obstacle in its way and thus bats catch their prey..
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