10. Write the full form of SONAR. Mention the principle on which it works.
11. What is ultrasound? Give four uses of ultrasound.
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sonar=SOund Navigation And Ringing
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Answer for 10
The full form of SONAR is SOund NAvigation and Ranging.
Some of the underwater objects found could be:
Ship wreckages
Buried islands
Underwater submarine
Shoal of fishes
Depth of sea/ocean
SONAR works on the principle of echo. A transmistter emits a series of ultrasonic waves into the sea when these reflect back from any object/sea bed the receiver receives the waves and generates images based on it.
Answer of 11
Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing.
USES:-
Use during medical procedures. Ultrasound imaging can help doctors during procedures such as needle biopsies, which require the doctor to remove tissue from a very precise area inside the body for testing in a lab. Therapeutic applications. Ultrasounds sometimes are used to detect and treat soft-tissue injuries.
The full form of SONAR is SOund NAvigation and Ranging.
Some of the underwater objects found could be:
Ship wreckages
Buried islands
Underwater submarine
Shoal of fishes
Depth of sea/ocean
SONAR works on the principle of echo. A transmistter emits a series of ultrasonic waves into the sea when these reflect back from any object/sea bed the receiver receives the waves and generates images based on it.
Answer of 11
Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing.
USES:-
Use during medical procedures. Ultrasound imaging can help doctors during procedures such as needle biopsies, which require the doctor to remove tissue from a very precise area inside the body for testing in a lab. Therapeutic applications. Ultrasounds sometimes are used to detect and treat soft-tissue injuries.
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