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प्रश्न
Fill in the blank with suitable word :
Pitch of sound depends on ....................
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उत्तर
Pitch of sound depends on frequency.
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संबंधित प्रश्न
Explain how bats use ultrasound to catch a prey.
Explain how defects in a metal block can be detected using ultrasound.
Explain the term 'amplitude' of a wave. Draw the diagram of a wave and mark its amplitude on it.
Define the 'frequency' and 'time-period' of a wave. What is the relation between the two?
Write the full name of 'SONAR'.
What is meant by the 'loudness' of sound ? On what factor does the loudness of a sound depend ?
Explain why, if we strike a table lightly, we hear a soft sound but if we hit the table hard, a loud sound is heard.
How is it that bats are able to fly at night without colliding with other objects ?
Define the following terms : (a) Echolocation (b) Echocardiography, and (c) Ultrasonography.
What is sonar ? Explain its use.
