On a windless day, sound emanate isotropically from a point source. Rays of the sound waves emanated from a point source placed close to ground are shown in the figure. Consider horizontal wind towards the left blowing with constant velocity, which is uniform everywhere. In the following figures, rays of sound waves in presence of the wind are shown. Which one is the most correct representation?
A
B
C
D
Medium
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C
c Velocity of sound depends on velocity of medium as $(v_s)_m = v_s ± v_m$ Here wave front is shifted to left side
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A sound wave of frequency $\nu$ travels horizontally to the right. It is reflected from a large vertical plane surface moving to the left with a speed $v.$ The speed of sound in the medium is $c,$ then
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