What should be the velocity of a sound source moving towards a stationary observer so that apparent frequency is double the actual frequency (Velocity of sound is v )

At what velocity should a source of sound move towards a listener so that apparent frequency is twice the actual frequency?

With what velocity should a source of sound move towards a listener so that apparent frequency is twice the actual frequency ? Take velocity of sound in air =330m//s

A source is moving towards a stationary observer, so that the apparent frequency increases by 50%. If velocity of sound is 330 m/s, then velocity of source is

An observer moving towards a stationary source observes that the apparent frequency is three times the actual frequency of the source. If the velocity of sound is V, the velocity of the observer would be-

At what speed should a source of sound move so that stationary observer finds the apparent frequency equal to half of the original frequency

With what velocity should an observer approach a stationary shound source so that the apparent frequency of shound should appear double the actual frequency ? (v is velocity of shound).

What will be the velocity of source of sound if the apparent frequency received by a stationary observer is double of the original frquency ? Velocity of sound is 340 m/s.

A source of sound when moves towards a stationary observer, then frequency of the sound heard by listener is more than actual frequency because the