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प्रश्न
Which of the following cannot transmit sound? Water, Vacuum, Aluminium, Oxygen gas
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उत्तर
Among the following, vacuum cannot transmit sound because sound waves require a material medium for its propagation.
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संबंधित प्रश्न
Select the correct alternative :
Sound travels the fastest in
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 :
(a) compressions and rarefactions?
(b) crests and troughs?
Fill in the blank with suitable word.
When the frequency of the sound is increased, the wavelength ____________.
The region in a sound wave, with higher pressure and density, is called ______ and that with low pressure and density is called ______.
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 |
Sound is produced by ______.
