Question

1. A vibrating tuning fork is placed over the mouth of a burette containing water to its top. On
opening the tap of the burette, a loud sound is heard when the level of the water in burette
becomes 12cm. Give the reason.
2. If the water level falls further, again at a certain level, a loud sound is heard. At what level of
water, will it happen?

Answer 1

Answer:

(i) The phenomenon taking place is resonance.

(ii) This happens when the frequency of the air column becomes equal to the frequency of the tuning fork.