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प्रश्न
What is meant by echo depth sounding?
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उत्तर
The method by which the position of an obstacle hidden in water is located is known as echo depth sounding.
संबंधित प्रश्न
A certain sound has a frequency of 256 hertz and a wavelength of 1.3 m.
1) Calculate the speed with which this sound travels
2) What difference would be felt by a listener between the above sound and another sound traveling at the same speed, but of wavelength 2.6 m?
A wave passes from one medium to another medium. Mention one property of the wave out of speed, frequency or wavelength which changes.
State two differences between the light and sound waves.
Name the waves which are used in sonar to find the depth of a sea. Give one reason for their use.
Explain how the principle of echo is used by
The dolphin to locate small fish as its prey
Why is an echo not heard when the distance between the source of sound and reflection body is less than 10 m?
