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प्रश्न
Sound cannot travel in vacuum.
विकल्प
True
False
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उत्तर
This statement is True.
Explanation:
Sound requires a medium to travel through. When air has been entirely removed from a vessel, it is said that there is a vacuum in the vessel. Since a vacuum is devoid of any medium, sound cannot travel through it.
संबंधित प्रश्न
Cite an experiment to show that sound needs a material medium for its propagation.
Fill in the blank.
Sound can travel in a ______
In which medium sound travels fastest : air, water or steel?
In which medium sound travels faster : air or hydrogen?
Which of the following terms apply to sound waves in air and which to water waves?
Transverse, Rarefaction, Trough, Crest, Compression, Longitudinal
Describe an experiment to show that sound cannot pass through vacuum.
Describe in brief, with the aid of a lebelled diagram, an experiment to demonstrate that a material medium is necessary for propagation of sound.
Flash of lightning reaches earlier than the sound of thunder. Explain the reason.
The time interval between a lightning flash and the first sound of thunder was found to be 5 s. If the speed of sound in air is 330 m s-1, find the distance of flash from the observer.
Explain the effect of density on the speed of sound.
