Question
Download Solution PDFThe speed of a body that has Mach number more than 1 is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Shock waves: When an object moves with a velocity greater than that of sound, it is termed as Supersonic.
- When such a supersonic body or plane travels in air, it produces energetic disturbance that moves in the backward direction and diverges in the form of a cone.
- Such disturbance is called the shock waves.
- The speed of supersonic is measured in Mach number.
- One mach number is the speed of sound and it defined as the ratio of the velocity of the source to the velocity of sound i.e.,
EXPLANATION:
So these are the ratios of different speed of the body, for
- Hypersonic > 5.0 mach
- Supersonic > 1 mach
- Subsonic < 1 mach
In our case, only option 1 is true since only for an object traveling at supersonic will have mach greater than 1
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