Question

(29) The speed of sound in a gas
Increases with
I cas tempe (6) frequencyces & (c) P​

Answer 1

Answer:

temperature

Explanation:

velocity =

$\sqrt{ \frac{ \gamma P}{ density} }$

Y - specific heat ratio

1) Density - therefore density of air is inversely proportional to velocity of sound (at constant temperature)

therefore density of air is inversely proportional to velocity of sound (at constant temperature)------> that is the greater the density of air the lower will be the speed of sound

2)Relative Humidity - the speed of sound increases with humidity in air ..therefore speed of sound in wet air or moist air is more than speed of sound in dry air ..

the speed of sound increases with humidity in air ..therefore speed of sound in wet air or moist air is more than speed of sound in dry air ..--------> so humidity directly proportional to speed of sound

3) nature of transmitting medium

4) Temperature - (in gases)

v ∝√T

v ∝√Ti.e. with increase in temperature velocity of sound in a gas increases.

5) Pressure -

Change in pressure has no effect on velocity of sound in a gas, so long as temperature remains constant; because ;

Change in pressure has no effect on velocity of sound in a gas, so long as temperature remains constant; because ;P/ρ = constant; as long as temperature is constant.

Note: The speed of sound in air is not affected by Amplitudes, frequency, phase, loudness, pitch, or quality.