Source and observer start moving simulatneously along x and y-axis respectively. The speed of source is twice the speed of observer `V_0`. If the ratio of observer frequency to the frequency of the source is `0.75`, find the velocity of sound.

source and observer both start moving simultaneously from origion one along y - axis with speed of source = 2 (speed of observer ). The graph between the apparent frequency observed by observer (f) and time (t) would be

Source and observer both start moving simultaneously from origin one along X-axis an the other along y-axis with speed of source = 2 (speed of observer). The graph between the apparent frequency observed by observer (t) and time (t) would be: (Here, f0 = natural frequency of source)

if the speed of a sound source is equal to the speed fo sound and the source is moving away from the observer, then the ratio of apparent frequency to the original frequency is

if the speed of a sound source is equal to the speed fo sound and the source is moving away from the observer, then the ratio of apparent frequency to the original frequency is

A source and an observer are moving towards each other with a speed equal to v/2 where v is the speed of sound. The source is emitting sound of frequency n . The frequency heard by the observer will be

An observer is approaching a stationary source with a velocity 1/4 th of the velocity of sound. Then the ratio of the apparent frequency to actual frequency of source is