Question Statement:
Which one of the following is TRUE with respect to Phugoid mode of an aircraft?
Options:
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(A) Frequency is directly proportional to flight speed
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(B) Frequency is inversely proportional to flight speed
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(C) Frequency is directly proportional to the square root of flight speed
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(D) Frequency is inversely proportional to the square root of flight speed
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2013 Q.9)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Verbal & Numerical Aptitude** under *General Aptitude* (2 Marks, 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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