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Q.

Which type of waves is used in SONAR?

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a

Ultrasonic waves

b

Radio waves

c

Audible sound waves 

d

Infrasonic waves

answer is B.

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Detailed Solution

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Ultrasonic waves are used in SONAR.
SONAR stands for Sound Navigation and Ranging with ultrasonic waves. In this technique, Ultrasonic waves are produced in all directions. If any object is present inside the waves’ range, waves get reflected back and detected by the device. And the location of the object is detected.
 
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Which type of waves is used in SONAR?