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प्रश्न
Write the answer in your own words.
Explain with the help of practical examples how sound is propagated through solids.
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उत्तर १
Sound is propagated in the form of waves in solids. It can be explained clearly from the below examples:
- Place your ear on one end of a long table. Ask your friend to tap the table from the other end. You can hear the produced sound. Sound reaches your ear after travelling through the table. This indicates that sound can travel through solids and in the form of waves.
- A stethoscope is another example of sound travelling through solids. Doctors use stethoscopes to listen to our heartbeat.
उत्तर २
Sound propagates with maximum speed through the solid medium. We can hear the sound of a train that is far off by placing our ear to the railway track. If we knock at the door. The person inside the room can hear it clearly.
संबंधित प्रश्न
Describe with the help of a diagram, how compressions and rarefactions are produced in air near a source of sound.
Fill in the blank.
Sound requires a ________ for propagation.
In which medium sound travels faster : air or hydrogen?
Which of the following terms apply to sound waves in air and which to water waves?
Transverse, Rarefaction, Trough, Crest, Compression, Longitudinal
Sound in air propagates in form of
The propagation of sound does not occur through a ______.
Can we hear sounds of frequencies:
Less than 20 Hz
______ is the distance between two consecutive particles.
In any medium, as the ______ increases, the speed of sound also increases.
The amount of water vapour present in the air is known as ______.
