Question

Two tuning forks with frequencies of 256 Hz and 512 Hz are struck. Which of the sounds will move faster through the air?

Answer 1

The same.

Explanation:

The velocity of sound in any gaseous medium is given by:

`c =sqrt{\frac{K_s}{\rho}}`

Where,

`K_s` is a coefficient of stiffness, the isentropic bulk modulus (or the modulus of bulk elasticity for gases)

`rho` is the density.

It does not depend on the frequency of itself. Though the bulk modulus may vary with frequency, but I am not sure those minute details are required here.