Advertisements
Advertisements
प्रश्न
What is the importance of air in transmission of sound?
Advertisements
उत्तर
Air acts as a medium for transmission of sound. When a sound wave passes through air, the particles of air vibrate back and forth, parallel to the direction of the sound wave. Thus, when a sound wave travels in the horizontal direction, then the particles of the medium also vibrate back and forth in the horizontal direction. Sound cannot travel without a medium and thus we cannot listen to sounds in the space because of absence of air.
संबंधित प्रश्न
What was the ancient belief regarding the nature of matter ?
Fill in the blank:
_____________ discovered the oxygen gas.
How is air useful to agriculture?
What will happen if the number of vehicles and factories in your surroundings increases?
Draw a neat labelled diagram for the following experiment.
To determine the component of air used up in burning, by using phosphorus and a bell jar.
Draw a neat labelled diagram for the following experiment.
To prove that oxygen is non-combustible, but supports combustion.
Draw a neat labelled diagram for the following experiment.
To prepare oxygen in the laboratory from hydrogen peroxide and a catalyst.
What is wind energy?
State whether the following statement is true or false. If false, correct them.
Air does not occupy any space.
Paheli kept some water in a beaker for heating. She observed that tiny bubbles appeared before the water started to boil. She boiled the water for about 5 minutes and filled it in a bottle up to the brim and kept the bottle air tight till it cooled down to room temperature.
Do you think tiny bubbles will appear on heating the water taken out from the bottle? Justify your answer.
