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प्रश्न
Name one solid, on liquid and one gas through which sound can travel.
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उत्तर
Sound waves require a material medium for its propagation so that it can travel in all the three states of matter :
solid (iron block), liquid (water), and gas (hydrogen).
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संबंधित प्रश्न
Sound can travel through ______.
Fill in the blank.
Sound requires a ________ for propagation.
Can two person hear each other on moon’s surface ? Give reason to support your answer.
In which medium sound travels faster : air or iron?
Out of solids, liquids and gases :
(a) in which medium sound travels slowest?
(b) in which medium sound travels fastest?
Fill in the blank with suitable word.
Sound cannot travel through ____________.
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.
Explain the experiment, with a neat diagram, to prove the following:
'Sound needs material medium for propagation.'
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.
Assuming the speed of sound in air equal to 340 m/s and in water equal to 1360 m/s, find the time taken to travel a distance 1700 m by sound in (i) air (ii) water.
