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प्रश्न
Sound cannot travel in vacuum.
पर्याय
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.
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संबंधित प्रश्न
Describe with the help of a diagram, how compressions and rarefactions are produced in air near a source of sound.
Out of solids, liquids and gases :
(a) in which medium sound travels slowest?
(b) in which medium sound travels fastest?
When we open a gas tap of a few seconds, the sound of escaping gas is heard first but the smell of gas comes later. Why?
Give scientific reasons:
As the sound wave propagates from one place to the other in air, the air itself is not required to move from one place to the other.
Complete the following sentences :
When sound travels in a medium, the particles of medium ___________ but the disturbance ___________.
A boy fires a gun and another boy at a distance hears the sound of fire 2.5s after seeing the flash. If the speed of sound in air 340 m/s, find distance between the boys.
Does the speed of sound in a gas depend on the pressure of the gas?
Do all animals have same ranges of audible frequencies?
The speed of sound is ______ in solids than in liquids
Find the odd one out.
