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प्रश्न
Explain why, a ringing bell suspended in a vacuum chamber cannot be heard outside.
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उत्तर
A ringing bell suspended in a vacuum chamber cannot be heard outside because sound wave is an example of mechanical wave and requires material medium for its propagation. Therefore, sound waves cannot travel through vacuum.
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संबंधित प्रश्न
Fill in the blank.
Sound requires a ________ for propagation.
Out of solids, liquids and gases :
(a) in which medium sound travels slowest?
(b) in which medium sound travels fastest?
In which medium sound travels faster : air or hydrogen?
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.
How long will sound take to travel in (a) and iron rail and (b) air, both 3.3 km in length? Take speed of sound in air to be 330 m/s and in iron to be 5280 m/s.
Describe an experiment to prove that a material medium is necessary for the propagation of sound.
Does the speed of sound in a gas depend on the pressure of the gas?
Name the Sound of the Frequency Given Below:
45 kHz
The speed of sound is ______ in solids than in liquids
In any medium, as the ______ increases, the speed of sound also increases.
