Sound Needs a Medium to travel


 
 
Concept Explanation
 

Sound Needs a Medium to travel

Sound Needs a Medium to Travel:

Sound needs a medium to propagate or travels.Sound travels through solid liquid and gas but the sound does not pass through vaccum.

Sounds are made in a variety of ways but all involves vibrations. A tuning fork produces a sound as it vibrates back and forth, a guitar string moves up and down producing a sound when it is plucked.Sound needs a medium to propagate. Velocity of sounds is maximum in solids and least in gases.

large v_{solid}> v_{liquid}>v_{gas}

                                       

                                                                                    A tuning fork

Sample Questions
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Question : 1

A bomb explodes on the moon. How long will it take sound to reach the reath ?

Right Option : D
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Explanation
Question : 2

Which of the following are correct :

(a) The substance through which sound travels is called a medium.

(b) Medium can be solid, liquid or a gas.

(c) Sound wave cannot travel in vaccum.

Right Option : D
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Explanation
Question : 3

Sound cannot travel in __________________.

Right Option : D
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Explanation
 
 


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