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प्रश्न
Fill in the blank with suitable word .
Sound waves are caused by ...................
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उत्तर
Sound waves are caused by Vibrations.
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संबंधित प्रश्न
Give two practical applications of reflection of sound waves.
How is ultrasound used for cleaning?
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.
Fill in the blank with suitable word :
Loudness of sound depends on .....................
Explain the term 'pitch' of a sound. On what factor does the 'pitch' of a sound depend ?
What is the range of frequencies associated with (a) infrasound (b) audible sound, and (c) ultrasound ?
Write any three applications (or uses) of ultrasound.
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).
The depth of an ocean can be determined by ______.
