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प्रश्न
Name the Sound of the Frequency Given Below:
45 kHz
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उत्तर
Ultrasonic sound
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संबंधित प्रश्न
Suppose you and your friend are on the moon. Will you be able to hear any sound produced by your friend?
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?
State one observation from everyday life which shows that sound travels much more slow than light.
Why cannot a sound be heard on the moon? How do astronauts talk to one another on the surface of moon?
The sound waves travel fastest :
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.
Explain the effect of density on the speed of sound.
the speed of sound in air is 331 ms-1 at ______ and ______ at 22°C.
The amount of water vapour present in the air is known as ______.
