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प्रश्न
Can we hear sounds of frequencies:
More than 20 KHZ
उत्तर
More than 20KHz - we cannot hear sound.
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संबंधित प्रश्न
Select the correct alternative :
Sound cannot travel in
In which medium sound travels fastest : air, water or steel?
Why cannot a sound be heard on the moon? How do astronauts talk to one another on the surface of moon?
A body vibrating with a time-period of `1/256` s produces a sound wave which travels in air with a velocity of 350 m/s. Calculate the wavelength.
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.
Compare approximately the speed of sound in air, water and steel.
Answer the following question :
How does the speed of sound differ in different media?
Write the answer in your own words.
Explain with the help of practical examples how sound is propagated through solids.
Does the speed of sound in a gas depend on the pressure of the gas?
Does audible range of frequency vary from person and also with the age of the person?
