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प्रश्न
If 20 waves are produced per second, What is the frequency is hertz?
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उत्तर
If 20 waves are produced per second, the frequency of sound waves is 20 Hz.
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संबंधित प्रश्न
What minimum distance is required between the source of sound and the reflecting surface to hear an echo ? Give reason.
The frequency of a source of sound is 100 Hz. How many times does it vibrate in a minute?
Can sound travel through (a) iron, and (b) water?
Name the physical qantity whose SI unit is 'hertz'.
What is the general name of the waves consisting of :
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(b) crests and troughs?
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Medium is ______ for generation of sound.
Different sound notes have different ______.
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| Jal-Tarang | Vibrations in vocal cords |
| Tuning fork | Vibrations in strings |
| Sitar | Vibrations of screen |
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