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प्रश्न
Fill in the blank and explain.
Sound does not travel through ______.
उत्तर
Sound does not travel through Vaccum.
Explanation:
- Sound waves need to travel through a medium such as a solid, liquid, or gas.
- The sound waves move through each of these mediums by vibrating the molecules in the matter.
- Sound cannot travel through a vacuum.
- A vacuum is an area without any air, like space. So sound cannot travel through space because there is no matter for the vibrations to work in.
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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?
Sound cannot travel in vacuum.
Can two person hear each other on moon’s surface ? Give reason to support your answer.
Name the type of waves which are used by astronauts to communicate with one another on moon (or in outer space).
When we open a gas tap of a few seconds, the sound of escaping gas is heard first but the smell of gas comes later. Why?
Explain why, a ringing bell suspended in a vacuum chamber cannot be heard outside.
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?
Sound travels in air :
Describe in brief, with the aid of a lebelled diagram, an experiment to demonstrate that a material medium is necessary for propagation of sound.
Complete the following sentences :
When sound travels in a medium, the particles of medium ___________ but the disturbance ___________.
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.
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.
What are the requisites of the medium for the propagation of sound? Briefly, explain them.
What is the audible range of frequency?
Can we hear sounds of frequencies:
More than 20 KHZ
______ is the distance between two consecutive particles.
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