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प्रश्न
Suppose you and your friend are on the moon. Will you be able to hear any sound produced by your friend?
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उत्तर
Sound needs a medium to propagate. Since the moon is devoid of any atmosphere, you cannot hear any sound on the moon.
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संबंधित प्रश्न
Sound can travel through ______.
Can sound travel through a vacuum ? Describe an experiment to explain your answer.
Name the type of waves which are used by astronauts to communicate with one another on moon (or in outer space).
Out of solids, liquids and gases :
(a) in which medium sound travels slowest?
(b) in which medium sound travels fastest?
State one observation from everyday life which shows that sound travels much more slow than light.
Describe in brief, with the aid of a lebelled diagram, an experiment to demonstrate that a material medium is necessary for propagation of sound.
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.
What are the requisites of the medium for the propagation of sound? Briefly, explain them.
Can we hear sounds of frequencies:
Less than 20 Hz
the speed of sound in air is 331 ms-1 at ______ and ______ at 22°C.
