Which mode of vibration exhibits the shortest wavelength at a given frequency in a material?

Master Ultrasonic Testing Level 2 Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Prepare confidently for your certification!

Multiple Choice

Which mode of vibration exhibits the shortest wavelength at a given frequency in a material?

Explanation:
Wavelength at a given frequency is determined by λ = v / f, where v is the wave speed for that mode. The mode with the smallest speed will have the smallest wavelength. In a solid, compression (longitudinal) waves travel fastest, shear waves are slower, and surface (Rayleigh) waves travel the slowest. Therefore, for the same frequency, the surface wave has the shortest wavelength.

Wavelength at a given frequency is determined by λ = v / f, where v is the wave speed for that mode. The mode with the smallest speed will have the smallest wavelength. In a solid, compression (longitudinal) waves travel fastest, shear waves are slower, and surface (Rayleigh) waves travel the slowest. Therefore, for the same frequency, the surface wave has the shortest wavelength.

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