Correct option is A
The natural frequency of the remaining half-length cantilever beam (ω2) will be four times the original frequency (ω1):ω2=4ω1Key Points:1. Length Dependency: The natural frequency scales as L21. Halving the length quadruples the frequency.2. Assumptions:∘ The beam is homogeneous and prismatic.∘ No additional mass or damping is introduced after breaking.3. Practical Implications:∘ Shorter beams vibrate at higher frequencies, which is critical in structural design and failure analysis.