Question

as the velocity of the Sound Source approaches the speed of sound the wavelengths ahead of...

as the velocity of the Sound Source approaches the speed of sound the wavelengths ahead of the object begin to appear as (a. separately distinguishable waves space b. a single wave front c. cylindrical d. a cone-shaped shock wave) and when the velocity of the Sound Source exceeds the speed of sound the wave fronts form (a. separately distinguishable waves b. a single wave front c. cylindrical d. a cone-shaped shock wave.)

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Answer #1

1.b A single Wave front


When the speed of a soruce is equals to the speed of Sound ( v =c)

the wave fronts cannot excape through the Source

this results in a pile of waves of large amplitude called soudn barrier


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2.d Shock waves

When Speed of a soruce Exceeds the Speed of Sound (v > c)

the Wave front lags behind the cource in a cone shaped region with the source at the vertex

the edge of the cone forms a supersoinc wave frint with an large ampilitude called a shock wave

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