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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
A submarine emits a sonar pulse, which returns from an underwater cliff in 1.02 s. If the speed of sound in salt water is 1531 m/s, how far away is the cliff?
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.
Name the unit used to measure the loudness of sound. Also write its symbol.
What is the name of the device which is used to find the depth of sea (or ocean) by using ultrasonic sound waves ?
What happens to the loudness of a sound if its amplitude decreases ?
Fill in the blank with suitable word :
Loudness of sound depends on .....................
Explain how, flaws (or defects) in a metal block can be detected by using ultrasound.
What is sonar ? Explain its use.
A sonar station picks up a return signal after 3 seconds. How far away is the object ? (Speed of sound in water = 1440 m/s).
