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प्रश्न
The ultrasound waves can penetrate into matter to a large extent because they have :
विकल्प
very high speed
very high frequency
very high wavelength
very high amplitude
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उत्तर
Ultrasound waves can enter the metal surfaces because of their high frequency.
(b) Very high frequency.
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संबंधित प्रश्न
Explain how bats use ultrasound to catch a prey.
Explain the term 'amplitude' of a wave. Draw the diagram of a wave and mark its amplitude on it.
Name the three characteristics of sound.
What is the name of the device which is used to find the depth of sea (or ocean) by using ultrasonic sound waves ?
Write the full name of 'SONAR'.
Explain the term 'pitch' of a sound. On what factor does the 'pitch' of a sound depend ?
Write any three applications (or uses) of ultrasound.
Which of the two produces ultrasonic waves : porpoise or whale ?
What is sonar ? Explain its use.
The depth of an ocean can be determined by ______.
