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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 bats use ultrasound to catch a prey.
Name the characteristic of sound which depends on (a) amplitude (b) frequency, and (c) waveform.
What type of scans are used these days to monitor the growth of developing baby in the uterus of the mother ?
What name is given to sound waves of frequencies higher than 20 kHz ?
Fill in the blank with suitable word :
Quality of sound depends on ........................
Draw labelled diagrams to represent sound of (a) low pitch, and (b) high pitch, of the same loudness.
What is meant by the quality (or timbre) of sound ? On what factor does the quality (or timbre) of a sound depend ?
What is sonar ? Explain its use.
The ultrasound waves can penetrate into matter to a large extent because they have :
Explain how does SONAR work?
