state the use of echo by a bat ,dolphin ,and fisherman
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• Bats produce sound which has the ability to echo back to them when it hits an obstacle.
This makes them understand where the obstacle is, and helps them to find their way by avoiding that obstacle.
• The dolphin can detect their enemies by emitting the ultrasonic waves. They use it to trap their prey.
• The fishermen send ultrasonic waves from some source. The reason being that these waves will strike an obstacle or a fish.
When it does, they easily trap the fish.
This makes them understand where the obstacle is, and helps them to find their way by avoiding that obstacle.
• The dolphin can detect their enemies by emitting the ultrasonic waves. They use it to trap their prey.
• The fishermen send ultrasonic waves from some source. The reason being that these waves will strike an obstacle or a fish.
When it does, they easily trap the fish.
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Answer:
Answer:Bats:
Answer:Bats: The ultrasonic sound produced by the bats are reflected back by other objects in their path and the echoes thus heared are detucted by bats. It is due to the echolocation of objects around them that the bats fly at night, without colliding with other objects
Dolphins :
They use ultrasonic waves for detecting and hunting their prey.
Fisherman :
Fisherman also uses ultrasonic waves for detecting the fish inside the water of sea by sending a pulse of ultrasonic waves from a very high frequency transmitter into the sea and receives the reflected ultrasonic waves from the shoal of fish in a receiver.
HOPE IT HELPS.....
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