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प्रश्न
In SONAR we use:
पर्याय
ultrasonic waves
infrasonic waves
radio waves
audible sound waves
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उत्तर
ultrasonic waves
Ultrasonic waves are used in SONAR.
संबंधित प्रश्न
A sonar device on a submarine sends out a signal and receives an echo 5 s later. Calculate the speed of sound in water if the distance of the object from the submarine is 3625 m.
Name the unit used to measure the loudness of sound. Also write its symbol.
How does the pitch of a sound depend on frequency ?
Name the characteristic of sound which depends on (a) amplitude (b) frequency, and (c) waveform.
How is an ultrasound scan for fetus (unborn baby) better than X-ray ?
What is meant by the 'loudness' of sound ? On what factor does the loudness of a sound depend ?
How is it that bats are able to fly at night without colliding with other objects ?
Name an animal which navigates and finds food by ecolocation.
What type of waves are generated by SONAR device fixed to a fishing ship ?
The depth of an ocean can be determined by ______.
