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प्रश्न
What is an ultrasonic sound?
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उत्तर
A sound with a frequency greater than 20000 Hz is called an ultrasonic sound.
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संबंधित प्रश्न
Draw a diagram to show the wave pattern of high pitch note and a low pitch note, but of the same loudness.
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State the factor that determine the pitch of a note.
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If the thickness of a vibrating string is increased, its pitch _____.
The town hall building is situated close to Boojho’s house. There is a clock on the top of the town hall building which rings the bell every hour. Boojho has noticed that the sound of the clock appears to be much clearer at night. Explain.
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On which factor pitch of the sound depends?
Find the odd one out.
