

MCQOPTIONS
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1. |
One Mach number is equal to |
A. | Velocity of light |
B. | Velocity of sound \[(332\,\,m/\sec )\] |
C. | \[1\,\,km/\sec \] |
D. | \[1\,m/\sec \] |
Answer» C. \[1\,\,km/\sec \] | |