Discussion
Consider the following statements about the Mach cone in supersonic flow:
1. Its half-angle is the inverse sine of the reciprocal of the Mach number.
2. It becomes more slender as the Mach number increases.
3. It exists in subsonic flow with a half-angle greater than 90 degrees.
Which of the statements given above is or are correct?
Answer: A
The first two are correct and describe how the cone narrows at higher speeds. The third is meaningless: below Mach one the reciprocal of the Mach number exceeds one and the inverse sine is undefined, which is the mathematics reflecting the fact that disturbances reach everywhere in a subsonic flow.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development