Question

When a vibrating tuning fork is held over a length of air column in a tube, a loud sound is heard

i) Name the phenomenon

ii) How will you compare the frequency of the loud sound with the that of the tunning fork?

iii) How will you compare the amplitude of the loud sound with that tuning fork?​

Answer 1

Answer:

I) Resonance

2)When the natural frequency of the air column is tuned to the frequency of the vibrating tuning fork, resonance occurs and a loud sound results. The vibrating tuning fork forces air particles within the air column into vibrational motion. In this resonance situation, the tuning fork and the air column share the same vibrational frequency.