8. On a windless day, rays of the sound waves emanating from an isotropic point source placed close to the ground are shown in the figure. If a horizontal wind starts blowing towards the left with a constant and uniform velocity, which of the following will best represent pattern of the sound rays? (a) (b) (d)

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8. On a windless day, rays of the sound waves emanating from an isotropic
point source placed close to the ground are shown in the figure. If a
horizontal wind starts blowing towards the left with a constant and
uniform velocity, which of the following will best represent pattern of
the sound rays?
(a)
(b)
(d)
9. A detector receding from a stationary sound source with a speed that
Transcribed Image Text:8. On a windless day, rays of the sound waves emanating from an isotropic point source placed close to the ground are shown in the figure. If a horizontal wind starts blowing towards the left with a constant and uniform velocity, which of the following will best represent pattern of the sound rays? (a) (b) (d) 9. A detector receding from a stationary sound source with a speed that
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