When a probe is coupled to a solid, strong surface waves may be produced:

Related MCQs

• Sound waves which travel on the surface of a solid in a manner similar to waves on a water surface are called:
• Sound waves of a frequency beyond the hearing range of the human ear are referred to as ultrasonic waves or vibrations, and the term embraces all vibrational waves of frequency greater than approximately:
• The velocity of surface waves is approximately shear waves in the same material.
• Which of the following conditions would be most likely to cause strong, interfering surface waves?
• Shear waves for ultrasonic testing are usually produced:
• The depth of penetration of surface waves is approximately:
• To avoid interfering surface waves, low frequencies should only be used on:
• What is the magnetic field strength at the surface of a 100 mm diameter bar as compared to that at the surface of a 50 mm diameter bar, each carrying 1000 amps of current?
• What is the magnetic field strength at the surface of a 25mm diameter bar as compared to that at the surface of a 50mm diameter bar, each carrying 1000 amps of current?
• How is the magnetic field strength at the surface of a magnetic conductor having permeability, µ, related to the magnetic field strength, F, at the surface of a nonmagnetic conductor carrying the same current?