Question Statement:
For an airfoil, which of the relations given about the critical Mach number
crM
and drag divergence Mach number
ddM is/are correct?
Options:
-
(A) cr ddMM
-
(B) 1.0crM
-
(C) 1.0ddM
-
(D) 1.0crM
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2023 Q.46)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Linear Algebra & Differential Equations** under *Engineering Mathematics* (2 Marks, MCQ).
**2. Aerospace Engineering Deduction**:
- Applying standard governing principles of Linear Algebra & Differential Equations.
- Option **(A)** matches the analytical derivation and official criteria.
**3. Final Answer**:
Correct Option is **(A)**.
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