A closed organ pipe of length 99.4 cm is vibrating in its second overtone and in always resonance with a tunning fork having frequency 
, where 
is time in second. The rate by which radius of organ pipe changes when its radius is 1 cm , is (speed of sound in organ pipe 
)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
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