Discussion
Assertion (A): A boundary layer separates wherever the pressure gradient is adverse.
Reason (R): An adverse gradient decelerates the low-momentum fluid nearest the wall.
Select the correct answer from the options below.
Answer: D
The assertion is too strong while the reason is correct. An adverse gradient is necessary for separation but not sufficient: a turbulent layer routinely negotiates a mild rise without separating. Separation requires the gradient to be steep enough to drive the wall shear to zero.
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