Fluid dynamics & flight: Use of Mach number. Mach number relates an object’s speed to the local speed of sound in the medium. Choose the correct option.
IIT JEE
Physics
Difficulty: Easy
Choose an option
-
AAircraft and high-speed gas flows (speed relative to sound)
-
BOcean currents
-
CPlate tectonics
-
DElectrical conduction
Answer
Correct Answer: Aircraft and high-speed gas flows (speed relative to sound)
Explanation
Concept
- Mach number = object speed / speed of sound (subsonic, transonic, supersonic, hypersonic regimes).
Final AnswerAircraft and high-speed gas flows (speed relative to sound)