Question

If you send a sound wave of the same wavelength (λ = 2.00 m) through air, helium, and carbon dioxide, describe how the pitch of the sound will compare through each medium.

Answer 1

here since the frequency remains the same n velocity changes as per medium..so i think there might be a change

@ganeshie8 please help

Answer 2

@IrishBoy123

Answer 3

it will depend on the density

Answer 4

\[f=\frac{ v}{ \lambda}\]the speed of sound in denser medium is more as compared to a rarer medium

the wavelength remains constant but the speed of sound in different mediums is different

velocity of sound in a particular gas is given by this->\[\cal\large\color{black}{v_{sound}=\sqrt{\frac{ \gamma RT }{ M}}}\]
where R=gas constant
T=absolute temp
M=molecular mass
\(\gamma\)=adiabatic const -> it is diff for diff gases

:/
\({v_{air}=331.2m/s}\)
\({v_{carbon~dioxide}=267m/s}\)
\({v_{helium}=1007m/s}\)