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प्रश्न
What is sound and how is it produced?
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उत्तर
Vibration is what produces sound. When a body vibrates, it forces the neighbouring particles of the medium to vibrate. This creates a disturbance in the medium, which travels in waves. When it reaches the ear, this disturbance produces sound.
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संबंधित प्रश्न
Describe an experiment to show that each source of sound is a vibrating body.
Name two sources of sound.
What is the general name of the waves consisting of :
(a) compressions and rarefactions?
(b) crests and troughs?
A tuning fork has a number 256 marked on it. What does this number signify?
If 20 waves are produced per second, What is the frequency is hertz?
Draw the sketches of two waves A and B such that wave A has twice the wavelength and half the amplitude of wave B.
The total number of compressions and rarefactions produced per second in a sound wave is 1000. The frequency of the sound wave is __________.
Different sound notes have different ______.
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 |
Describe an experiment to show that sound cannot travel through vaccum.
