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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 is sound and how is it produced?
Fill in the blank.
Sound is produced when a body ______.
Which characteristics of the sound helps you to identify your friend by his voice while sitting with others in a dark room?
What is the general name of the waves consisting of :
(a) compressions and rarefactions?
(b) crests and troughs?
Describe a simple experiment to show that the prongs of a sound producing tuning fork are vibrating.
Which of the following vibrates when a musical note is produced by the cymbals in an orchestra?
A key of mechanical piano is first struck gently and then struck again but much harder this time. In the second case :
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
______ is produced when an object is set to vibrate.
