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प्रश्न
Why are the Ultrasonic waves are not audible to us?
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उत्तर
Ultrasonic waves have frequency larger than 20000 Hz. Hence, these waves are not audible to us as the audible range of the human ear is 20 Hz to 20000 Hz.
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संबंधित प्रश्न
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[Hint: Natural frequency of vibration of a stretched string is inversely proportional to the radius (or thickness) of string so notes of different frequencies can be produces by vibrating different strings.]
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A wire stretched between two fixed supports, is plucked exactly in the middle and then released. It executes (neglect the resistance of the medium) ______.
Explain why strings of different thicknesses are provided on a stringed instrument.
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(b) How did you come to this conclusion.
Where can a body execute natural vibrations?
