Question

Which one of the following scenarios accurately describes a condition in which resonance can occur? A. A vibrating tuning fork is struck and begins to vibrate as the object used to strike it is placed away from the tuning fork. B. A column of air has a height equal to 1⁄8 of the wavelength of the sound waves produced by a tuning fork vibrating over the column of air in an open pipe that's partially immersed in water. C. A pipe's length is equal to 1⁄2 of the wavelength of the sound waves produced by a tuning fork vibrating over one end of the pipe that's open to the air at both ends. D. A person is holding a tuning fork on one end of a football field and another person is holding a separate tuning fork on the opposite end of the field.

Answer 1

The correct option is C.
Resonance refers to the phenomenon in which a vibratory system respond with maximum amplitude to an applied force, which have a frequency that is equal to its own frequency. Thus, resonance is said to occur, when a force vibration is the same as a natural frequency of a vibrating system. A perfect example of resonance is the one given in option C.