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प्रश्न
If 20 waves are produced per second, What is the frequency is hertz?
उत्तर
If 20 waves are produced per second, the frequency of sound waves is 20 Hz.
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संबंधित प्रश्न
Fill in the blank.
Sound is produced when a body ______.
What is the SI unit of frequency?
Name the device which is used to produce sound in laboratory experiments?
State whether the following statement is true or false :
Sound produced by a vibrating body travels to our ears by the actual movement of air.
Fill in the blank with suitable word.
When the frequency of the sound is increased, the wavelength ____________.
When the pitch of note produced by a harmonium is lowered, then the wavelength of the note :
Match the following:
| Human larynx | Vibrations of metal arms |
| Loudspeaker | Vibrations in air column |
| Jal-Tarang | Vibrations in vocal cords |
| Tuning fork | Vibrations in strings |
| Sitar | Vibrations of screen |
Sound travels in the air if
Suppose a stick is struck against a frying pan in vacuum. Will the frying pan vibrate? Will we be able to hear the sound? Explain.
The substance through which sound is transmitted is called ______.
