How does the velocity of sound depend on its frequency?

How does the frequency velocity of sound depend on its frequency?

The observer is moving with velocity 'v_0' towards the stationary source of sound and then after crossing moves away from the source with velocity ' v_0 '. Assume that the medium through which the sound waves travel is at rest, If 'v' is the velocity of sound and 'n' is the frequency emitted by the spurce then the difference between apparent frequencies heard by the observer is

When both source and listener approach each other with a velocity equal to half the velocity of sound, the change in frequency of the sound as detected by the listener is

The velocity of sound islargest in

On what quality of sound depends?

How does the sign of W depends on DeltaV ?

What is velocity of sound wave ?

The velocity of sound is greatest in

Answer the given question : How does the economic condition of a nation depend on its natural resources ?