Advertisements
Advertisements
Question
Out of solids, liquids and gases :
(a) in which medium sound travels slowest?
(b) in which medium sound travels fastest?
Advertisements
Solution
In solids, the distances between the molecules are closer and thus the atoms are more densely packed than in gases and liquids. Therefore, the molecules quickly collide with one another and transfer the vibrational energy. Similarly, in liquids the molecules are closer to one another than in gases. Therefore, the following data is inferred:
(a) Sound travels slowest in gases.
(b) Sound travels fastest in solids.
APPEARS IN
RELATED QUESTIONS
Sound cannot travel in vacuum.
Fill in the blank.
Sound can travel in a ______
Can two person hear each other on moon’s surface ? Give reason to support your answer.
The sound waves travel fastest :
Describe in brief, with the aid of a lebelled diagram, an experiment to demonstrate that a material medium is necessary for propagation of sound.
State three characteristics of the medium required for propagation of sound?
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.
Can sound propagate in solids and liquids?
Can we hear sounds of frequencies:
More than 20 KHZ
When we hear a sound, does any part of our body vibrate? Name the part.
