In fundamental mode, the time required for the sound wave to reach up to the closed end of a pipe filled with air is ' 
' second. The frequency of vibration of air column is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
For a closed pipe, fundamental frequency
where 
is the speed of sound in air and 
is the length of the air column.
Now, ' 
' is the time required for the sound wave to reach upto the length ' 
' of the air column
or 
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