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प्रश्न
In SONAR we use:
विकल्प
ultrasonic waves
infrasonic waves
radio waves
audible sound waves
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उत्तर
ultrasonic waves
Ultrasonic waves are used in SONAR.
संबंधित प्रश्न
Explain how defects in a metal block can be detected using ultrasound.
Name the three characteristics of sound.
Name the unit used to measure the loudness of sound. Also write its symbol.
What happens to the pitch of a sound if its frequency increases ?
What happens to the loudness of a sound if its amplitude decreases ?
Fill in the blank with suitable word :
Quality of sound depends on ........................
What is the range of frequencies associated with (a) infrasound (b) audible sound, and (c) ultrasound ?
Which of the two produces ultrasonic waves : porpoise or whale ?
Fill in the blank and explain.
To discover a sunken ship or objects deep inside the sea, ______ technology is used.
Explain how does SONAR work?
