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प्रश्न
What are the requisites of the medium for the propagation of sound? Briefly, explain them.
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उत्तर
The following are the requisites of medium to travel:
(i) The medium should possess elasticity so that particles of the medium have the tendency to come back to their original position after the displacement.
(ii) The medium should be frictionless so that there should be a loss of energy.
(iii) The medium must possess inertia so that particles of the medium have the ability to store energy.
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संबंधित प्रश्न
Cite an experiment to show that sound needs a material medium for its propagation.
Select the correct alternative :
Sound cannot travel in
Can sound travel through a vacuum ? Describe an experiment to explain your answer.
Describe an experiment to show that sound cannot pass through vacuum.
The sound waves travel fastest :
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.
State two properties of medium on which the speed of sound in it depends.
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.
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.
Sound cannot travel in ______.
