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A boundary over which physical conditions undergo changes is called _______

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+1 vote
in Fluid Mechanics by (118k points)
A boundary over which physical conditions undergo changes is called _______

(a) Shear front

(b) Shock front

(c) Contact front

(d) Cap front

I had been asked this question during an online interview.

This interesting question is from Velocity of Sound or Pressure Wave in a Fluid topic in portion Compressible Flow of Fluid Mechanics

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Best answer
The correct choice is (b) Shock front

Easiest explanation: Shock front is defined as the boundary over which the physical conditions of a fluid undergo abrupt changes. This happens due to the shock wave. Thus, the correct choice is option Shock front.

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