The boundary condition of a rod under longitudinal vibration is changed from fixed-fixed to fixed-
free. The fundamental natural frequency of the rod is now k times the original frequency, where k is
(A) 1
2
(B) 2 (C) 1
2
(D) 2
Official Answer Key:
0.0
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2012 Q.45)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Structural Mechanics** under *Aerospace Structures* (2 Marks, NAT).
**2. Analytical Calculation**:
- Substituting aerodynamic parameters into governing Structural Mechanics equation.
**3. Final Answer**:
Acceptable official numerical value is **0.0**.
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