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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.
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
State three characteristics of the medium required for propagation of sound?
State two properties of medium on which the speed of sound in it depends.
A boy fires a gun and another boy at a distance hears the sound of fire 2.5s after seeing the flash. If the speed of sound in air 340 m/s, find distance between the boys.
Describe an experiment to prove that a material medium is necessary for the propagation of sound.
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
How are bats able to avoid obstacles in their way?
Do all animals have same ranges of audible frequencies?
The speed of sound is ______ in solids than in liquids
______ is the number of vibrations of a particle in the medium, in one second
