A sounding tuning fork is brought near the end of a pipe containing an air column and the loudness of the sound increases. This effect is due to

Answer Details

The effect of increased loudness observed when a sounding tuning fork is brought near the end of a pipe containing an air column is due to resonance. Resonance occurs when a vibrating object or sound wave causes another object to vibrate at its natural frequency. In this case, the air column in the pipe has a natural frequency of vibration, which depends on its length and the speed of sound in air. When the tuning fork is brought near the end of the pipe, it emits sound waves of a particular frequency, which can cause the air column to vibrate at its natural frequency. If the length of the air column is adjusted so that it resonates with the frequency of the tuning fork, a large-amplitude vibration is produced, resulting in a loud sound. This is because the energy transferred to the air column by the tuning fork is efficiently transferred to the entire column of air, creating a large-amplitude sound wave. The phenomenon of resonance is used in many musical instruments, such as guitars, pianos, and wind instruments, to amplify the sound produced by the instrument. In summary, the increased loudness observed when a sounding tuning fork is brought near the end of a pipe containing an air column is due to resonance.