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प्रश्न
State the use of echo by a bat, dolphin and fisherman.
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उत्तर
Bats, dolphin and fisherman detect their enemies or obstacles or position of fish by emitting/sending the ultrasonic waves and hearing/detecting the echo.
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?
Define wave velocity term in relation to a wave.
Explain how the principle of echo is used by
The bat during its flight at
Write the approximate value of the speed of sound in air.
What do you understand by the ‘Echolocation system of Dolphins’?
What is mean by the reflection of sound?
What is meant by an echo? Explain.
