ICSE Class 10 Physics 2013 Solved Paper

Show Para  Hide Para 
A vibrating tuning fork is placed over the mouth of a burette filled with water. The tap of the burette is opened and the water level gradually starts falling. It is found that the sound from the tuning fork becomes very loud for a particular length ofthe water column.
© examsnet.com
Question : 49
Total: 70
Why does the sound become very loud for this length of the water column?
Solution:  
This happens when the frequency of the air column becomes equal to the frequency of the tuning fork.
© examsnet.com
Go to Question: