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प्रश्न
Can we hear sounds of frequencies:
More than 20 KHZ
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उत्तर
More than 20KHz - we cannot hear sound.
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संबंधित प्रश्न
Cite an experiment to show that sound needs a material medium for its propagation.
Fill in the blank.
Sound can travel in a ______
Name the type of waves which are used by astronauts to communicate with one another on moon (or in outer space).
The frequency of the sound emitted by the loudspeaker is 1020 Hz. Calculate the wavelength of the sound wave in air in cm where its velocity is 340 m/s.
Why cannot a sound be heard on the moon? How do astronauts talk to one another on the surface of moon?
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.
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?
The speed of sound is ______ in solids than in liquids
Find the odd one out.
