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  • If the temperature of the gaseous medium drops by 1 %, the velocity of sound in that medium-  Option: 1 increase by <img alt="5 \%" src="

If the temperature of the gaseous medium drops by 1 %, the velocity of sound in that medium-
 

Option: 1

increase by 5 \%


Option: 2

remains unchanged
 


Option: 3

decrease by 0.5 \%


Option: 4

decreases by 2 \%


Answers (1)

best_answer

Velocity of sound, \mathrm{v=\sqrt{\frac{\gamma R T}{m}} \: or \: v \alpha T^{1 / 2}}

For small percentage change

\mathrm{\% decrease\: in\: v=\frac{1}{2}(\%\: change\: in \: T)}

\mathrm{v=\frac{1}{2}(1 \%)=0.5 \%}

Hence option 3 is correct.

 

Posted by

Irshad Anwar

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