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Science and Technology - General Knowledge Questions
The unit used to measure the supersonic speed is
A)
Hertz
B)
Richter
C)
Mach
D)
Knots

Correct Answer :   Mach

Supersonic speeds are described by their "Mach number", broadly defined as the ratio of the speed of the aeroplane to the speed of sound in air of the same temperature and density.

Published On : June 9, 2021
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