For a laminar incompressible flow past a flat plate at zero angle of attack, the variation of skin
friction drag coefficient fC with Reynolds number based on the chord length cRe can be
expressed as
Options:
(A) cf Re C
(B) cf Re C
(C) c
f
Re
1C
(D) c
f Re1C
Official Answer Key:
A
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2016 Q.4)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Verbal & Numerical Aptitude** under *General Aptitude* (1 Mark, MCQ).
**2. Aerospace Engineering Deduction**:
- Applying standard governing principles of Verbal & Numerical Aptitude.
- Option **(A)** matches the analytical derivation and official criteria.
**3. Final Answer**:
Correct Option is **(A)**.
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