Advertisements
Advertisements
Question
What is meant by echo depth sounding?
Advertisements
Solution
The method by which the position of an obstacle hidden in water is located is known as echo depth sounding.
RELATED QUESTIONS
Why are the ceilings of concert halls curved?
A wire of length 80 cm has a frequency of 256 Hz. Calculate the length of a similar wire under similar tension, which will have frequency 1024 Hz
What adjustments would you make for tuning a stringed instrument for it to emit a note of a desired frequency?
What is a megaphone ? Name the principle on which a megaphone works.
Explain how the principle of echo is used by
The dolphin to locate small fish as its prey
(i) A man stands at a distance of 68 m from a cliff and fires a gun. After what time interval will he hear the echo, if the speed of sound in air is 340 ms−1?
(ii) If the man had been standing at a distance of 12 m from the cliff would he have heard a clear echo?
Explain reflection at the boundary of a rarer medium.
