MCQ
One Mach number is equal to
  • A
    Velocity of light
  • Velocity of sound $(332\,\,m/\sec )$
  • C
    $1\,\,km/\sec $
  • D
    $1\,m/\sec $

Answer

Correct option: B.
Velocity of sound $(332\,\,m/\sec )$
b
(b) Mach number $ = \frac{{{\rm{Velocity\, of\, object}}}}{{{\rm{Velocity \,of \,sound}}}}$.

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