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प्रश्न
What is the SI unit of frequency?
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उत्तर
The SI unit of frequency is hertz (Hz).
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संबंधित प्रश्न
Describe an experiment to estimate the speed of sound in air.
Which characteristics of the sound helps you to identify your friend by his voice while sitting with others in a dark room?
Name four ways in which sound can be produced.
Describe a simple experiment to show that the prongs of a sound producing tuning fork are vibrating.
How does sound from a sound producing body travel through air to reach our ears? Illustrate your answer with the help of a labelled diagram.
How is sound produced in a human larynx and a loudspeaker?
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 |
What is vibration?
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.
