Echoes may be heard more than once due to successive or multiple
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An echo is returned in 3 s. What is the distance of the reflecting surface from the source, considering the speed of sound as 342 ms-1?
Echocardiogram is more closely related to
To hear a distinct echo the time interval between the original sound and the reflected sound must be at least
Rearrange the parts of the sentence in correct order.
Echolocating bats
P : emit sounds in patterns that
Q : and constant-frequency (CF) signals
R : contain both frequency modulated (FM)
Which phenomenon is responsible for the echo of sound wave?
What is the minimum distance (in metres) required to hear an echo?
A person clapped his hands near a cliff and heard echo after 6 s. The distance of the cliff from the personis: [take v = 346 m/s]
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