A closed organ pipe and an open pipe of same length produce 4 beats when they are set into vibrations simultaneously. If the length of each of them were twice their initial lengths, the number of beats produced will be [Assume same mode of vibration in both cases]
Text Solution
Verified by ExpertsThe correct answer is:
A
η 1 = 
, η 2 = 
no. of beat heard n 1 – n 2 = 
= 4
if length of pipes are doubled. no of beats heard 
– 
= 
= 
= 2
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