Propagation | MCQs

Explanation

Wave velocity is the distance a wave travels per second in a given medium.

It is calculated as Velocity (v) = Frequency (f) × Wavelength (λ).

Explanation

The wave velocity in any medium depends on all of the above:

Elasticity:

A medium's elasticity determines how easily it can resist deformation and return to its original shape when force is applied.

Higher elasticity means the wave can travel faster through the medium. 

Density:

The density of a medium also affects wave velocity.

Denser media tend to slow down wave propagation. 

Homogeneity:

A homogeneous medium has consistent properties throughout, meaning the wave velocity will be uniform in all directions. 

Explanation

Sound waves in air are longitudinal waves

Because particles of the medium through which the sound is transported vibrate parallel to the direction that the sound wave moves.