What is Echoes? How is it useful?
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Answer: Echoes are used by bats, dolphins and fisherman to detect an object / obstruction.
They are also used in SONAR (Sound navigation and ranging) and RADAR(Radio detection and ranging) to detect an obstacle. SONAR employs the detection of reflections of ultrasonic waves for the detection of an object whereas RADAR employs the detection of reflections of radio waves for the detection of an object.
Echoes also find applications in medical science like ultrasonography and echo cardiography for imaging of human organs.
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❣❣heya!❣❣
✏Echoes are used by bats, dolphins and fisherman to detect an object / obstruction.
✏They are also used in SONAR (Sound navigation and ranging) and RADAR(Radio detection and ranging) to detect an obstacle.
✏Scientists Use Sound Waves to Find Hidden Cracks in Bridges, Airplanes. They begin their research by sending hundreds of different ultrasonic waves into a structure.
✏Then, Mr. Croxford says, they listen and study echoes of the sound waves to identify the smallest cracks.
✍ please mark it as brainlist answer ✍
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